8

Admin

Section 8 of the manual describes commands which either can be or are used only by the superuser, like system-administration commands, daemons, and hardware-related commands. As with the commands in described section 1, the commands described in this section terminate with an exit status that indicates whether the command succeeded or failed.

Top 6 commands

Command Description Lookups
1 cron daemon to execute scheduled commands
2 traceroute print the route packets trace to network host
3 netstat Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships
4 iptables administration tool for IPv4 packet filtering and NAT
5 apt-get APT package handling utility - command-line interface
6 ping send ICMP ECHO_REQUEST to network hosts

All commands767

  • Command
  • Description
30-systemd-environment-d-generator
Load variables specified by environment.d
accessdb
dumps the content of a man-db database in a human readable format
accton
turns process accounting on or off
addpart
tell the kernel about the existence of a partition
agetty
alternative Linux getty
anacron
runs commands periodically
apt-get
command-line interface
aptitude
high-level interface to the package manager
arpd
userspace arp daemon.
arping
send ARP REQUEST to a neighbour host
arptables-nft
ARP table administration (nft-based)
arptables-nft-restore
Restore ARP Tables (nft-based)
arptables-nft-save
dump arptables rules to stdout (nft-based)
astraceroute
autonomous system trace route utility
audispd-zos-remote
z/OS Remote-services Audit dispatcher plugin
auditctl
a utility to assist controlling the kernel's audit system
auditd
The Linux Audit daemon
augenrules
a script that merges component audit rule files
aureport
a tool that produces summary reports of audit daemon logs
ausearch
a tool to query audit daemon logs
automount
manage autofs mount points
autrace
a program similar to strace
avcstat
Display SELinux AVC statistics
badblocks
search a device for bad blocks
blkdeactivate
utility to deactivate block devices
blkdiscard
discard sectors on a device
blkid
locate/print block device attributes
blkiomon
monitor block device I/O based o blktrace data
blkmapd
pNFS block layout mapping daemon
blktrace
generate traces of the i/o traffic on block devices
blkzone
run zone command on a device
blockdev
call block device ioctls from the command line
booleans
Policy booleans enable runtime customization of SELinux policy
bpfc
a Berkeley Packet Filter assembler and compiler
brctl
ethernet bridge administration
bridge
show / manipulate bridge addresses and devices
btrace
perform live tracing for block devices
btrecord
recreate IO loads recorded by blktrace
btreplay
recreate IO loads recorded by blktrace
btrfs
a toolbox to manage btrfs filesystems
btrfs-balance
balance block groups on a btrfs filesystem
btrfs-check
check or repair a btrfs filesystem
btrfsck
check or repair a btrfs filesystem
btrfs-convert
convert from ext2/3/4 or reiserfs filesystem to btrfs in-place
btrfs-device
manage devices of btrfs filesystems
btrfs-filesystem
command group that primarily does work on the whole filesystems
btrfs-find-root
filter to find btrfs root
btrfs-image
create/restore an image of the filesystem
btrfs-inspect-internal
query various internal information
btrfs-map-logical
map btrfs logical extent to physical extent
btrfs-property
get/set/list properties for given filesystem object
btrfs-qgroup
control the quota group of a btrfs filesystem
btrfs-quota
control the global quota status of a btrfs filesystem
btrfs-receive
receive subvolumes from send stream
btrfs-replace
replace devices managed by btrfs with other device.
btrfs-rescue
Recover a damaged btrfs filesystem
btrfs-restore
try to restore files from a damaged btrfs filesystem image
btrfs-scrub
scrub btrfs filesystem, verify block checksums
btrfs-select-super
overwrite primary superblock with a backup copy
btrfs-send
generate a stream of changes between two subvolume snapshots
btrfs-subvolume
manage btrfs subvolumes
btrfstune
tune various filesystem parameters
captest
a program to demonstrate capabilities
catman
create or update the pre-formatted manual pages
cfdisk
display or manipulate a disk partition table
chcat
change file SELinux security category
chcpu
configure CPUs
checkmodule
SELinux policy module compiler
checkpolicy
SELinux policy compiler
chgpasswd
update group passwords in batch mode
chmem
configure memory
chpasswd
update passwords in batch mode
clddb-tool
Tool for manipulating the nfsdcld sqlite database
clockdiff
measure clock difference between hosts
cmirrord
cluster mirror log daemon
convertquota
convert quota from old file format to new one
crash
Analyze Linux crash dump data or a live system
cron
daemon to execute scheduled commands
crond
daemon to execute scheduled commands
cryptsetup
manage plain dm-crypt and LUKS encrypted volumes
cryptsetup-reencrypt
tool for offline LUKS device re-encryption
ctrlaltdel
set the function of the Ctrl-Alt-Del combination
ctstat
unified linux network statistics
cupsaccept
accept/reject jobs sent to a destination
cupsctl
configure cupsd.conf options
cupsd
cups scheduler
cupsd-helper
cupsd helper programs (deprecated)
cupsdisable
stop/start printers and classes
cupsenable
stop/start printers and classes
cupsfilter
convert a file to another format using cups filters (deprecated)
cups-lpd
receive print jobs and report printer status to lpd clients (deprecated)
cups-snmp
cups snmp backend (deprecated)
curvetun
a lightweight curve25519 ip4/6 tunnel
debugfs
ext2/ext3/ext4 file system debugger
delpart
tell the kernel to forget about a partition
depmod
Generate modules.dep and map files.
devlink
Devlink tool
devlink-dev
devlink device configuration
devlink-health
devlink health reporting and recovery
devlink-monitor
state monitoring
devlink-port
devlink port configuration
devlink-region
devlink address region access
devlink-resource
devlink device resource configuration
devlink-sb
devlink shared buffer configuration
devlink-trap
devlink trap configuration
dmsetup
low level logical volume management
dmstats
device-mapper statistics management
dracut
low-level tool for generating an initramfs/initrd image
dracut-catimages
creates initial ramdisk image by concatenating images
dump-acct
print an acct/pacct file in human-readable format
dumpe2fs
dump ext2/ext3/ext4 filesystem information
dump-utmp
print a utmp file in human-readable format
e2freefrag
report free space fragmentation information
e2fsck
check a Linux ext2/ext3/ext4 file system
e2image
Save critical ext2/ext3/ext4 filesystem metadata to a file
e2label
Change the label on an ext2/ext3/ext4 filesystem
e2mmpstatus
Check MMP status of an ext4 filesystem
e2undo
Replay an undo log for an ext2/ext3/ext4 filesystem
e4crypt
ext4 filesystem encryption utility
e4defrag
online defragmenter for ext4 filesystem
ebtables-nft
Ethernet bridge frame table administration (nft-based)
edquota
edit user quotas
ethtool
query or control network driver and hardware settings
execstack
tool to set, clear, or query executable stack flag of ELF binaries and shared libraries
exportfs
maintain table of exported NFS file systems
fdformat
low-level format a floppy disk
fdisk
manipulate disk partition table
filecap
a program to see capabilities
filefrag
report on file fragmentation
findfs
find a filesystem by label or UUID
findmnt
find a filesystem
fixfiles
fix file SELinux security contexts.
flowtop
top-like netfilter TCP/UDP/SCTP/DCCP/ICMP(v6) flow tracking
fsadm
utility to resize or check filesystem on a device
fsck
check and repair a Linux filesystem
fsck.btrfs
do nothing, successfully
fsck.cramfs
fsck compressed ROM file system
fsck.minix
check consistency of Minix filesystem
fsck.xfs
do nothing, successfully
fsfreeze
suspend access to a filesystem (Ext3/4, ReiserFS, JFS, XFS)
fstrim
discard unused blocks on a mounted filesystem
genhomedircon
generate SELinux file context configuration entries for user home directories
genl
generic netlink utility frontend
getcap
examine file capabilities
getenforce
get the current mode of SELinux
getkeycodes
print kernel scancode-to-keycode mapping table
getsebool
get SELinux boolean value(s)
groupadd
create a new group
groupdel
delete a group
groupmems
administer members of a user's primary group
groupmod
modify a group definition on the system
grpck
verify integrity of group files
grpconv
convert to and from shadow passwords and groups
grpunconv
convert to and from shadow passwords and groups
gssd
RPCSEC_GSS daemon
halt
Halt, power-off or reboot the machine
hdparm
get/set SATA/IDE device parameters
hwclock
time clocks utility
i386
change reported architecture in new program environment and/or set personality flags
iconvconfig
create iconv module configuration cache
idmapd
NFSv4 ID <-> Name Mapper
ifcfg
simplistic script which replaces ifconfig IP management
ifconfig
configure a network interface
ifpps
top-like networking and system statistics
ifstat
handy utility to read network interface statistics
insmod
Simple program to insert a module into the Linux Kernel
integritysetup
manage dm-integrity (block level integrity) volumes
iotop
simple top-like I/O monitor
ip6tables
administration tool for IPv4/IPv6 packet filtering and NAT
ip6tables-restore
Restore IP Tables
ip6tables-save
dump iptables rules
ip6tables-translate
translation tool to migrate from iptables to nftables
ip-addrlabel
protocol address label management
ip-fou
Foo-over-UDP receive port configuration
ip-gue
Foo-over-UDP receive port configuration
ip-l2tp
L2TPv3 static unmanaged tunnel configuration
ip-macsec
MACsec device configuration
ip-maddress
multicast addresses management
ip-monitor
state monitoring
ip-mroute
multicast routing cache management
ip-neighbour
neighbour/arp tables management.
ip-netconf
network configuration monitoring
ip-netns
process network namespace management
ip-nexthop
nexthop object management
ip-ntable
neighbour table configuration
ip-rule
routing policy database management
ip-sr
IPv6 Segment Routing management
iptables
administration tool for IPv4/IPv6 packet filtering and NAT
iptables-apply
a safer way to update iptables remotely
iptables-extensions
list of extensions in the standard iptables distribution
iptables-restore
Restore IP Tables
iptables-save
dump iptables rules
iptables-translate
translation tool to migrate from iptables to nftables
ip-tcp_metrics
management for TCP Metrics
ip-token
tokenized interface identifier support
iptraf-ng
Interactive Colorful IP LAN Monitor
ip-tunnel
tunnel configuration
ip-vrf
run a command against a vrf
ip-xfrm
transform configuration
isosize
output the length of an iso9660 filesystem
kbdrate
reset the keyboard repeat rate and delay time
kernel-install
Add and remove kernel and initramfs images to and from /boot
kexec
directly boot into a new kernel
key.dns_resolver
upcall for request-key to handle dns_resolver keys
kmod
Program to manage Linux Kernel modules
lastlog
reports the most recent login of all users or of a given user
ldattach
attach a line discipline to a serial line
ldconfig
configure dynamic linker run-time bindings
ld-linux
dynamic linker/loader
ld-linux.so
dynamic linker/loader
ld.so
dynamic linker/loader
libnss_myhostname.so.2
Provide hostname resolution for the locally configured system hostname.
libnss_mymachines.so.2
Provide hostname resolution for local container instances.
libnss_resolve.so.2
Provide hostname resolution via systemd-resolved.service
libnss_systemd.so.2
Provide UNIX user and group name resolution for dynamic users and groups.
linux32
change reported architecture in new program environment and/or set personality flags
linux64
change reported architecture in new program environment and/or set personality flags
lnstat
unified linux network statistics
load_policy
load a new SELinux policy into the kernel
loadunimap
load the kernel unicode-to-font mapping table
logrotate
rotates, compresses, and mails system logs
logsave
save the output of a command in a logfile
losetup
set up and control loop devices
lpadmin
configure cups printers and classes
lpinfo
show available devices or drivers (deprecated)
lpmove
move a job or all jobs to a new destination
lsblk
list block devices
lslocks
list local system locks
lsmod
Show the status of modules in the Linux Kernel
lsns
list namespaces
lspci
list all PCI devices
lsusb
list USB devices
lttng-relayd
LTTng 2 relay daemon
lttng-sessiond
LTTng 2 tracing session daemon
lvchange
Change the attributes of logical volume(s)
lvconvert
Change logical volume layout
lvcreate
Create a logical volume
lvdisplay
Display information about a logical volume
lvextend
Add space to a logical volume
lvm
LVM2 tools
lvm2-activation-generator
generator for systemd units to activate LVM volumes on boot
lvmconfig
Display and manipulate configuration information
lvm-config
Display and manipulate configuration information
lvmdbusd
LVM D-Bus daemon
lvmdiskscan
List devices that may be used as physical volumes
lvmdump
create lvm2 information dumps for diagnostic purposes
lvm-dumpconfig
Display and manipulate configuration information
lvm-fullreport
Display full report
lvmlockctl
Control for lvmlockd
lvmlockd
LVM locking daemon
lvm-lvpoll
Continue already initiated poll operation on a logical volume
lvmpolld
LVM poll daemon
lvmsadc
LVM system activity data collector
lvmsar
LVM system activity reporter
lvreduce
Reduce the size of a logical volume
lvremove
Remove logical volume(s) from the system
lvrename
Rename a logical volume
lvresize
Resize a logical volume
lvs
Display information about logical volumes
lvscan
List all logical volumes in all volume groups
mailq
show contents of the mail queue
makemap
create database maps for sendmail
mandb
create or update the manual page index caches
mapscrn
load screen output mapping table
mausezahn
a fast versatile packet generator with Cisco-cli
mcs
Multi-Category System
mcstransd
MCS (Multiple Category System) daemon.  Translates SELinux MCS/MLS labels to human readable form.
mdadm
manage MD devices aka Linux Software RAID
mdmon
monitor MD external metadata arrays
migratepages
Migrate the physical location a processes pages
migspeed
Test the speed of page migration
mii-tool
view, manipulate media-independent interface status
mke2fs
create an ext2/ext3/ext4 filesystem
mkfs
build a Linux filesystem
mkfs.btrfs
create a btrfs filesystem
mkfs.cramfs
make compressed ROM file system
mkfs.minix
make a Minix filesystem
mkfs.xfs
construct an XFS filesystem
mkhomedir_helper
Helper binary that creates home directories
mkinitrd
is a compat wrapper, which calls dracut to generate an initramfs
mklost+found
create a lost+found directory on a mounted Linux second extended file system
mkswap
set up a Linux swap area
modinfo
Show information about a Linux Kernel module
modprobe
Add and remove modules from the Linux Kernel
mountd
NFS mount daemon
mount.fuse3
configuration and mount options for FUSE file systems
mount.nfs
mount a Network File System
mountstats
Displays various NFS client per-mount statistics
mysqld
the MariaDB server
nameif
name network interfaces based on MAC addresses
netcap
a program to see capabilities
netsniff-ng
the packet sniffing beast
netstat
Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships
newaliases
update /etc/aliases database
newusers
update and create new users in batch
nfsconf
Query various NFS configuration settings
nfsdcld
NFSv4 Client Tracking Daemon
nfsdcltrack
NFSv4 Client Tracking Callout Program
nfsiostat
Emulate iostat for NFS mount points using /proc/self/mountstats
nfsref
manage NFS referrals
nfsstat
list NFS statistics
ninfod
Respond to IPv6 Node Information Queries
nscd
name service cache daemon
nss-myhostname
Provide hostname resolution for the locally configured system hostname.
nss-mymachines
Provide hostname resolution for local container instances.
nss-resolve
Provide hostname resolution via systemd-resolved.service
nss-systemd
Provide UNIX user and group name resolution for dynamic users and groups.
nstat
network statistics tools.
numactl
Control NUMA policy for processes or shared memory
numastat
Show per-NUMA-node memory statistics for processes and the operating system
ovn-controller
Open Virtual Network local controller
ovn-controller-vtep
Open Virtual Network local controller for vtep enabled physical switches.
ovn-ctl
Open Virtual Network northbound daemon lifecycle utility
ovn-nbctl
Open Virtual Network northbound db management utility
ovn-northd
Open Virtual Network central control daemon
ovn-sbctl
utility for querying and configuring OVN_Southbound database
ovn-trace
Open Virtual Network logical network tracing utility
ovs-appctl
utility for configuring running Open vSwitch daemons
ovs-ctl
OVS startup helper script
ovs-dpctl
administer Open vSwitch datapaths
ovs-kmod-ctl
OVS startup helper script for loading kernel modules
ovs-ofctl
administer OpenFlow switches
ovs-parse-backtrace
parses ovs-appctl backtrace output
ovs-pki
OpenFlow public key infrastructure management utility
ovs-tcpdump
Dump traffic from an Open vSwitch port using tcpdump.
ovs-vsctl
utility for querying and configuring ovs-vswitchd
ovs-vswitchd
Open vSwitch daemon
PAM
Pluggable Authentication Modules for Linux
pam_access
PAM module for logdaemon style login access control
pam_cracklib
PAM module to check the password against dictionary words
pam_debug
PAM module to debug the PAM stack
pam_deny
The locking-out PAM module
pam_echo
PAM module for printing text messages
pam_env
PAM module to set/unset environment variables
pam_exec
PAM module which calls an external command
pam_faildelay
Change the delay on failure per-application
pam_filter
PAM filter module
pam_ftp
PAM module for anonymous access module
pam_group
PAM module for group access
pam_issue
PAM module to add issue file to user prompt
pam_keyinit
Kernel session keyring initialiser module
pam_lastlog
PAM module to display date of last login and perform inactive account lock out
pam_limits
PAM module to limit resources
pam_listfile
deny or allow services based on an arbitrary file
pam_localuser
require users to be listed in /etc/passwd
pam_loginuid
Record user's login uid to the process attribute
pam_mail
Inform about available mail
pam_mkhomedir
PAM module to create users home directory
pam_motd
Display the motd file
pam_namespace
PAM module for configuring namespace for a session
pam_nologin
Prevent non-root users from login
pam_permit
The promiscuous module
pam_pwhistory
PAM module to remember last passwords
pam_rhosts
The rhosts PAM module
pam_rootok
Gain only root access
pam_securetty
Limit root login to special devices
pam_selinux
PAM module to set the default security context
pam_sepermit
PAM module to allow/deny login depending on SELinux enforcement state
pam_shells
PAM module to check for valid login shell
pam_succeed_if
test account characteristics
pam_systemd
Register user sessions in the systemd login manager
pam_time
PAM module for time control access
pam_timestamp
Authenticate using cached successful authentication attempts
pam_timestamp_check
Check to see if the default timestamp is valid
pam_tty_audit
Enable or disable TTY auditing for specified users
pam_umask
PAM module to set the file mode creation mask
pam_unix
Module for traditional password authentication
pam_userdb
PAM module to authenticate against a db database
pam_warn
PAM module which logs all PAM items if called
pam_wheel
Only permit root access to members of group wheel
pam_xauth
PAM module to forward xauth keys between users
parted
a partition manipulation program
partprobe
inform the OS of partition table changes
partx
tell the kernel about the presence and numbering of on-disk partitions
ping
send ICMP ECHO_REQUEST to network hosts
plipconfig
fine tune PLIP device parameters
poweroff
Halt, power-off or reboot the machine
pscap
a program to see capabilities
pvchange
Change attributes of physical volume(s)
pvck
Check metadata on physical volumes
pvcreate
Initialize physical volume(s) for use by LVM
pvdisplay
Display various attributes of physical volume(s)
pvmove
Move extents from one physical volume to another
pvremove
Remove LVM label(s) from physical volume(s)
pvresize
Resize physical volume(s)
pvs
Display information about physical volumes
pvscan
List all physical volumes
pwck
verify integrity of password files
pwconv
convert to and from shadow passwords and groups
pwunconv
convert to and from shadow passwords and groups
quotacheck
scan a filesystem for disk usage, create, check and repair quota files
quota_nld
quota netlink message daemon
quotaoff
turn filesystem quotas on and off
quotaon
turn filesystem quotas on and off
quotastats
Program to query quota statistics
rdisc
network router discovery daemon
rdma
RDMA tool
rdma-dev
RDMA device configuration
rdma-link
rdma link configuration
rdma-resource
rdma resource configuration
rdma-statistic
RDMA statistic counter configuration
rdma-system
RDMA subsystem configuration
readprofile
read kernel profiling information
repquota
summarize quotas for a filesystem
request-key
handle key instantiation callback requests from the kernel
resize2fs
ext2/ext3/ext4 file system resizer
resizecons
change kernel idea of the console size
resizepart
tell the kernel about the new size of a partition
restorecon
restore file(s) default SELinux security contexts.
restorecond
daemon that watches for file creation and then sets the default SELinux file context
restorecon_xattr
manage security.sehash extended attribute entries added by setfiles(8) or restorecon(8).
rfkill
tool for enabling and disabling wireless devices
rmmod
Simple program to remove a module from the Linux Kernel
route
show / manipulate the IP routing table
routef
flush routes
routel
flush routes
rpcbind
universal addresses to RPC program number mapper
rpcdebug
set and clear NFS and RPC kernel debug flags
rpc.gssd
RPCSEC_GSS daemon
rpc.idmapd
NFSv4 ID <-> Name Mapper
rpcinfo
report RPC information
rpc.mountd
NFS mount daemon
rpc.nfsd
NFS server process
rpc.rquotad
remote quota server
rpc.statd
NSM service daemon
rsyslogd
reliable and extended syslogd
rtacct
network statistics tools.
rtcwake
enter a system sleep state until specified wakeup time
rtmon
listens to and monitors RTnetlink
rtpr
replace backslashes with newlines.
rtstat
unified linux network statistics
runlevel
Print previous and current SysV runlevel
rxe_cfg
rxe configuration tool for RXE (Soft RoCE)
sa
summarizes accounting information
sa1
Collect and store binary data in the system activity daily data file.
sa2
Create a report from the current standard system activity daily data file.
sadc
System activity data collector.
sefcontext_compile
compile file context regular expression files
selinux
NSA Security-Enhanced Linux (SELinux)
selinuxenabled
tool to be used within shell scripts to determine if selinux is enabled
selinuxexeccon
report SELinux context used for this executable
selinux-polgengui
SELinux Policy Generation Tool
semanage
SELinux Policy Management tool
semanage-boolean
SELinux Policy Management boolean tool
semanage-dontaudit
SELinux Policy Management dontaudit tool
semanage-export
SELinux Policy Management import tool
semanage-fcontext
SELinux Policy Management file context tool
semanage-ibendport
SELinux Policy Management ibendport mapping tool
semanage-ibpkey
SELinux Policy Management ibpkey mapping tool
semanage-import
SELinux Policy Management import tool
semanage-interface
SELinux Policy Management network interface tool
semanage-login
SELinux Policy Management linux user to SELinux User mapping tool
semanage-module
SELinux Policy Management module mapping tool
semanage-node
SELinux Policy Management node mapping tool
semanage-permissive
SELinux Policy Management permissive mapping tool
semanage-port
SELinux Policy Management port mapping tool
semanage-user
SELinux Policy Management SELinux User mapping tool
semodule
Manage SELinux policy modules.
semodule_expand
Expand a SELinux policy module package.
semodule_link
Link SELinux policy module packages together
semodule_package
Create a SELinux policy module package.
semodule_unpackage
Extract policy module and file context file from an SELinux policy module package.
sendmail
an electronic mail transport agent
sepolgen
Generate an initial SELinux policy module template.
sepolicy
SELinux Policy Inspection tool
sepolicy-booleans
Query SELinux Policy to see description of booleans
sepolicy-communicate
Generate a report showing if two SELinux Policy Domains can communicate
sepolicy-generate
Generate an initial SELinux policy module template.
sepolicy-gui
Graphical User Interface for SELinux policy.
sepolicy-interface
Print interface information based on the installed SELinux Policy
sepolicy-manpage
Generate a man page based on the installed SELinux Policy
sepolicy-network
Examine the SELinux Policy and generate a network report
sepolicy-transition
Examine the SELinux Policy and generate a process transition report
sestatus
SELinux status tool
setarch
change reported architecture in new program environment and/or set personality flags
setcap
set file capabilities
setenforce
modify the mode SELinux is running in
setfiles
set SELinux file security contexts.
setfont
load EGA/VGA console screen font
setkeycodes
load kernel scancode-to-keycode mapping table entries
setpci
configure PCI devices
setquota
set disk quotas
setsebool
set SELinux boolean value
setvtrgb
set the virtual terminal RGB colors
seunshare
Run cmd with alternate homedir, tmpdir and/or SELinux context
sfdisk
display or manipulate a disk partition table
sftp-server
SFTP server subsystem
showconsolefont
Show the current EGA/VGA console screen font
showmount
show mount information for an NFS server
slapacl
Check access to a list of attributes.
slapadd
Add entries to a SLAPD database
slapauth
Check a list of string-represented IDs for LDAP authc/authz
slapcat
SLAPD database to LDIF utility
slapd
Stand-alone LDAP Daemon
slapdn
Check a list of string-represented LDAP DNs based on schema syntax
slapindex
Reindex entries in a SLAPD database
slappasswd
OpenLDAP password utility
slapschema
SLAPD in-database schema checking utility
slaptest
Check the suitability of the OpenLDAP slapd configuration
slattach
attach a network interface to a serial line
sln
create symbolic links
smem
Report memory usage with shared memory divided proportionally.
sm-notify
send reboot notifications to NFS peers
smtpctl
control the Simple Mail Transfer Protocol daemon
smtpd
Postfix SMTP server
ss
another utility to investigate sockets
sshd
OpenSSH SSH daemon
ssh-keysign
ssh helper program for host-based authentication
ssh-pkcs11-helper
ssh-agent helper program for PKCS#11 support
stapbpf
systemtap bpf runtime
stapdyn
systemtap dyninst runtime
stap-exporter
systemtap-prometheus interoperation mechanism
staprun
systemtap runtime
stap-server
systemtap compile server management
stapsh
stapsh
start-stop-daemon
start and stop system daemon programs
statd
NSM service daemon
sulogin
single-user login
swaplabel
print or change the label or UUID of a swap area
switch_root
switch to another filesystem as the root of the mount tree
synaptic
graphical management of software packages
syslogd
log systems messages
system-config-selinux
SELinux Management tool
systemd-ask-password-console.path
Query the user for system passwords on the console and via wall
systemd-ask-password-console.service
Query the user for system passwords on the console and via wall
systemd-ask-password-wall.path
Query the user for system passwords on the console and via wall
systemd-ask-password-wall.service
Query the user for system passwords on the console and via wall
systemd-backlight
Load and save the display backlight brightness at boot and shutdown
systemd-backlight@.service
Load and save the display backlight brightness at boot and shutdown
systemd-binfmt
Configure additional binary formats for executables at boot
systemd-binfmt.service
Configure additional binary formats for executables at boot
systemd-coredump
Acquire, save and process core dumps
systemd-coredump@.service
Acquire, save and process core dumps
systemd-coredump.socket
Acquire, save and process core dumps
systemd-debug-generator
Generator for enabling a runtime debug shell and masking specific units at boot
systemd-environment-d-generator
Load variables specified by environment.d
systemd-fsck
File system checker logic
systemd-fsck-root.service
File system checker logic
systemd-fsck@.service
File system checker logic
systemd-fstab-generator
Unit generator for /etc/fstab
systemd-getty-generator
Generator for enabling getty instances on the console
systemd-gpt-auto-generator
Generator for automatically discovering and mounting root, /home and /srv partitions, as well as discovering and enabling swap partitions, based on GPT partition type GUIDs.
systemd-halt.service
System shutdown logic
systemd-hibernate-resume
Resume from hibernation
systemd-hibernate-resume-generator
Unit generator for resume= kernel parameter
systemd-hibernate-resume@.service
Resume from hibernation
systemd-hibernate.service
System sleep state logic
systemd-hostnamed
Host name bus mechanism
systemd-hostnamed.service
Host name bus mechanism
systemd-hwdb
hardware database management tool
systemd-hybrid-sleep.service
System sleep state logic
systemd-importd
VM and container image import and export service
systemd-importd.service
VM and container image import and export service
systemd-initctl
/dev/initctl compatibility
systemd-initctl.service
/dev/initctl compatibility
systemd-initctl.socket
/dev/initctl compatibility
systemd-journald
Journal service
systemd-journald-audit.socket
Journal service
systemd-journald-dev-log.socket
Journal service
systemd-journald.service
Journal service
systemd-journald.socket
Journal service
systemd-kexec.service
System shutdown logic
systemd-localed
Locale bus mechanism
systemd-localed.service
Locale bus mechanism
systemd-logind
Login manager
systemd-logind.service
Login manager
systemd-machined
Virtual machine and container registration manager
systemd-machined.service
Virtual machine and container registration manager
systemd-machine-id-commit.service
Commit a transient machine ID to disk
systemd-modules-load
Load kernel modules at boot
systemd-modules-load.service
Load kernel modules at boot
systemd-networkd
Network manager
systemd-networkd.service
Network manager
systemd-networkd-wait-online
Wait for network to come online
systemd-networkd-wait-online.service
Wait for network to come online
systemd-poweroff.service
System shutdown logic
systemd-quotacheck
File system quota checker logic
systemd-quotacheck.service
File system quota checker logic
systemd-random-seed
Load and save the system random seed at boot and shutdown
systemd-random-seed.service
Load and save the system random seed at boot and shutdown
systemd-reboot.service
System shutdown logic
systemd-remount-fs
Remount root and kernel file systems
systemd-remount-fs.service
Remount root and kernel file systems
systemd-resolved
Network Name Resolution manager
systemd-resolved.service
Network Name Resolution manager
systemd-rfkill
Load and save the RF kill switch state at boot and change
systemd-rfkill.service
Load and save the RF kill switch state at boot and change
systemd-rfkill.socket
Load and save the RF kill switch state at boot and change
systemd-shutdown
System shutdown logic
systemd-sleep
System sleep state logic
systemd-socket-proxyd
Bidirectionally proxy local sockets to another (possibly remote) socket.
systemd-suspend.service
System sleep state logic
systemd-sysctl
Configure kernel parameters at boot
systemd-sysctl.service
Configure kernel parameters at boot
systemd-system-update-generator
Generator for redirecting boot to offline update mode
systemd-sysusers
Allocate system users and groups
systemd-sysusers.service
Allocate system users and groups
systemd-sysv-generator
Unit generator for SysV init scripts
systemd-timedated
Time and date bus mechanism
systemd-timedated.service
Time and date bus mechanism
systemd-timesyncd
Network Time Synchronization
systemd-timesyncd.service
Network Time Synchronization
systemd-tmpfiles
Creates, deletes and cleans up volatile and temporary files and directories
systemd-tmpfiles-clean.service
Creates, deletes and cleans up volatile and temporary files and directories
systemd-tmpfiles-clean.timer
Creates, deletes and cleans up volatile and temporary files and directories
systemd-tmpfiles-setup-dev.service
Creates, deletes and cleans up volatile and temporary files and directories
systemd-tmpfiles-setup.service
Creates, deletes and cleans up volatile and temporary files and directories
systemd-udevd
Device event managing daemon
systemd-udevd-control.socket
Device event managing daemon
systemd-udevd-kernel.socket
Device event managing daemon
systemd-udevd.service
Device event managing daemon
systemd-update-done
Mark /etc and /var fully updated
systemd-update-done.service
Mark /etc and /var fully updated
systemd-update-utmp
Write audit and utmp updates at bootup, runlevel changes and shutdown
systemd-update-utmp-runlevel.service
Write audit and utmp updates at bootup, runlevel changes and shutdown
systemd-update-utmp.service
Write audit and utmp updates at bootup, runlevel changes and shutdown
systemd-user-sessions
Permit user logins after boot, prohibit user logins at shutdown
systemd-user-sessions.service
Permit user logins after boot, prohibit user logins at shutdown
systemd-vconsole-setup
Configure the virtual consoles
systemd-vconsole-setup.service
Configure the virtual consoles
systemd-volatile-root
Make the root file system volatile
systemd-volatile-root.service
Make the root file system volatile
systemtap-service
SystemTap initscript and systemd service
tc
show / manipulate traffic control settings
tc-actions
independently defined actions in tc
tc-basic
basic traffic control filter
tc-bfifo
Packet limited First In, First Out queue
tc-bpf
BPF programmable classifier and actions for ingress/egress queueing disciplines
tc-cake
Common Applications Kept Enhanced (CAKE)
tc-cbq
Class Based Queueing
tc-cbq-details
Class Based Queueing
tc-cbs
Credit Based Shaper (CBS) Qdisc
tc-cgroup
control group based traffic control filter
tc-choke
choose and keep scheduler
tc-codel
Controlled-Delay Active Queue Management algorithm
tc-connmark
netfilter connmark retriever action
tc-csum
checksum update action
tc-ctinfo
tc connmark processing action
tc-drr
deficit round robin scheduler
tc-ematch
extended matches for use with "basic", "cgroup"  or "flow" filters
tc-etf
Earliest TxTime First (ETF) Qdisc
tc-flow
flow based traffic control filter
tc-flower
flow based traffic control filter
tc-fq
Fair Queue traffic policing
tc-fq_codel
Fair Queuing (FQ) with Controlled Delay (CoDel)
tc-fw
fwmark traffic control filter
tc-htb
Hierarchy Token Bucket
tc-ife
encapsulate/decapsulate metadata
tc-matchall
traffic control filter that matches every packet
tc-mirred
mirror/redirect action
tc-mpls
mpls manipulation module
tc-mqprio
Multiqueue Priority Qdisc (Offloaded Hardware QOS)
tc-nat
stateless native address translation action
tc-netem
Network Emulator
tc-pedit
generic packet editor action
tc-pfifo
Packet limited First In, First Out queue
tc-pfifo_fast
three-band first in, first out queue
tc-pie
Proportional Integral controller-Enhanced AQM algorithm
tc-police
policing action
tc-prio
Priority qdisc
tc-red
Random Early Detection
tc-route
route traffic control filter
tc-sample
packet sampling tc action
tc-sfb
Stochastic Fair Blue
tc-sfq
Stochastic Fairness Queueing
tc-simple
basic example action
tc-skbedit
SKB editing action
tc-skbmod
user-friendly packet editor action
tc-skbprio
SKB Priority Queue
tc-stab
Generic size table manipulations
tc-taprio
Time Aware Priority Shaper
tc-tbf
Token Bucket Filter
tc-tcindex
traffic control index filter
tc-tunnel_key
Tunnel metadata manipulation
tc-u32
universal 32bit traffic control filter
tc-vlan
vlan manipulation module
tc-xt
tc iptables action
telinit
Change SysV runlevel
tftpd
Trivial File Transfer Protocol server
tipc
a TIPC configuration and management tool
tipc-bearer
show or modify TIPC bearers
tipc-link
show links or modify link properties
tipc-media
list or modify media properties
tipc-nametable
show TIPC nametable
tipc-node
modify and show local node parameters or list peer nodes
tipc-peer
modify peer information
tipc-socket
show TIPC socket (port) information
tracepath
traces path to a network host discovering MTU along this path
traceroute
print the route packets trace to network host
trafgen
a fast, multithreaded network packet generator
tune2fs
adjust tunable filesystem parameters on ext2/ext3/ext4 filesystems
tzselect
select a timezone
udevadm
udev management tool
umount.nfs
unmount a Network File System
uname26
change reported architecture in new program environment and/or set personality flags
unix_chkpwd
Helper binary that verifies the password of the current user
unix_update
Helper binary that updates the password of a given user
update-pciids
download new version of the PCI ID list
useradd
create a new user or update default new user information
userdel
delete a user account and related files
usermod
modify a user account
uuidd
UUID generation daemon
veritysetup
manage dm-verity (block level verification) volumes
vgcfgbackup
Backup volume group configuration(s)
vgcfgrestore
Restore volume group configuration
vgchange
Change volume group attributes
vgck
Check the consistency of volume group(s)
vgconvert
Change volume group metadata format
vgcreate
Create a volume group
vgdisplay
Display volume group information
vgexport
Unregister volume group(s) from the system
vgextend
Add physical volumes to a volume group
vgimport
Register exported volume group with system
vgimportclone
Import a VG from cloned PVs
vgmerge
Merge volume groups
vgmknodes
Create the special files for volume group devices in /dev
vgreduce
Remove physical volume(s) from a volume group
vgremove
Remove volume group(s)
vgrename
Rename a volume group
vgs
Display information about volume groups
vgscan
Search for all volume groups
vgsplit
Move physical volumes into a new or existing volume group
vigr
edit the password, group, shadow-password or shadow-group file
vipw
edit the password, group, shadow-password or shadow-group file
vmstat
Report virtual memory statistics
vtep-ctl
utility for querying and configuring a VTEP database
warnquota
send mail to users over quota
wdctl
show hardware watchdog status
wipefs
wipe a signature from a device
x86_64
change reported architecture in new program environment and/or set personality flags
xfs_admin
change parameters of an XFS filesystem
xfs_bmap
print block mapping for an XFS file
xfs_copy
copy the contents of an XFS filesystem
xfs_db
debug an XFS filesystem
xfsdump
XFS filesystem incremental dump utility
xfs_estimate
estimate the space that an XFS filesystem will take
xfs_freeze
suspend access to an XFS filesystem
xfs_fsr
filesystem reorganizer for XFS
xfs_growfs
expand an XFS filesystem
xfs_info
display XFS filesystem geometry information
xfsinvutil
xfsdump inventory database checking and pruning utility
xfs_io
debug the I/O path of an XFS filesystem
xfs_logprint
print the log of an XFS filesystem
xfs_mdrestore
restores an XFS metadump image to a filesystem image
xfs_metadump
copy XFS filesystem metadata to a file
xfs_mkfile
create an XFS file
xfs_ncheck
generate pathnames from i-numbers for XFS
xfs_quota
manage use of quota on XFS filesystems
xfs_repair
repair an XFS filesystem
xfsrestore
XFS filesystem incremental restore utility
xfs_rtcp
XFS realtime copy command
xfs_scrub
check and repair the contents of a mounted XFS filesystem
xfs_scrub_all
scrub all mounted XFS filesystems
xfs_spaceman
show free space information about an XFS filesystem
xqmstats
Display XFS quota manager statistics from /proc
xtables-legacy
iptables using old getsockopt/setsockopt-based kernel api
xtables-monitor
show changes to rule set and trace-events
xtables-nft
iptables using nftables kernel api
xtables-translate
translation tool to migrate from iptables to nftables
yum
Yellowdog Updater Modified
yum-copr
redirecting to DNF copr Plugin
yum-cron
an interface to conveniently call yum from cron
yum-shell
Yellowdog Updater Modified shell
yum-updatesd
Update notifier daemon
zdump
timezone dumper
zic
timezone compiler
zramctl
set up and control zram devices