Section8
From Linux Man Pages
System administration commands (usually only for root)
Contents |
A
accept/reject - accept/reject jobs sent to a destination
accessdb - dumps the content of a man-db database in a human readable format.
accton - turns process accounting on or off
acpid - Advanced Configuration and Power Interface event daemon
actctrl - configure IBM Active 2000 ISDN adaptor
8:adduser
adjtimex - display or set the kernel time variables
afpd - AppleTalk Filing Protocol daemon
agetty - alternative Linux getty
arp - manipulate the system ARP cache
arping - send ARP REQUEST to a neighbour host
atalkd - AppleTalk RTMP, NBP, ZIP, and AEP manager
atd - run jobs queued for later execution
atrun - run jobs queued for later execution
/etc/init.d/autofs - Control Script for automounter
automount - configure mount points for autofs
avmcapictrl - Add, reset or remove active AVM cards and load firmware
B
badblocks - search a device for bad blocks
8:bing
blkid - command-line utility to locate/print block device attributes
blockdev - call block device ioctls from the command line
blogd - boot logging on /dev/console
Blogger - writes messages to a running blogd process
bounce - Postfix message bounce or defer daemon
C
capiinfo - Show supported features of all installed CAPI2.0 controllers
capiplugin - Plugin for pppd (Point-to-Point Protocol daemon)
catman - create or update the pre-formatted manual pages
cfdisk - Curses based disk partition table manipulator for Linux
Checkproc - Checks for a process by full path name
Pidofproc - Checks for a process by exec base name
chkconfig - enable or disable system services
chkstat - Tool to check and set file permissions
chpasswd - change user passwords in batch
ckraid - obsolete
cleanup - canonicalize and enqueue Postfix message
hwclock - query and set the hardware clock (RTC)
clockdiff - measure clock difference between hosts
convertquota - convert quota from old file format to new one
cron - daemon to execute scheduled commands (Vixie Cron)
ctrlaltdel - set the function of the Ctrl-Alt-Del combination
cvsbug - send problem report (PR) about CVS to a central support site
cytune - Tune Cyclades driver parameters
D
debugfs - ext2 file system debugger
debugreiserfs
8:defer
depmod -- program to generate modules.dep and map files.
depmod - handle dependency descriptions for loadable kernel modules
detectups - UPS detection/powerd configuration generator
devdump, isoinfo, isovfy, isodump - Utility programs for dumping and verifying iso9660 images.
disable, enable - stop/start printers and classes
divertctrl - set/query ISDN diversion services for (E)DSS1 protocol
dmesg - print or control the kernel ring buffer
dmsetup - low level logical volume management
dosfsck - check and repair MS-DOS file systems
8:dprobes
8:dprobes.lang
dumpe2fs - dump filesystem information
E
e2fsadm - ext2 filesystem / LVM administration
e2fsck - check a Linux second extended file system
e2image - Save critical ext2 filesystem data to a file
e2label - Change the label on an ext2 filesystem
edquota - edit user quotas
eiconctrl - configure Eicon active ISDN card
elvtune - I/O elevator tuner
disable, enable - stop/start printers and classes
error - Postfix error mailer
etherwake - A little tools to send magic WOL packages
ethtool - Display or change ethernet card settings
exportfs - maintain list of NFS exported file systems
F
faillog - examine faillog and set login failure limits
fdformat - Low-level formats a floppy disk
fdisk - Partition table manipulator for Linux
fillup - the SuSE tool for merging config files
findfs - Find a filesystem by label or UUID
flush - Postfix fast flush server
fping - send ICMP ECHO_REQUEST packets to network hosts
fsck - check and repair a Linux file system
e2fsck - check a Linux second extended file system
e2fsck - check a Linux second extended file system
jfs_fsck - initiate replay of the JFS transaction log, and check and repair a JFS formatted device
fsck.minix - a file system consistency checker for Linux
dosfsck - check and repair MS-DOS file systems
fsck.xfs - do nothing, successfully
G
genksyms - generate symbol version information
getcap - examine file capabilities
getkeycodes - print kernel scancode-to-keycode mapping table
gpart - guess PC-type hard disk partitions
gpm - a cut and paste utility and mouse server for virtual consoles
groupadd - Create a new group
groupdel - Delete a group
groupmod - Modify a group
grpck - verify integrity of group files
8:grpconv
8:grpunconv
grub - the grub shell
grub-install - install GRUB on your drive
grub-md5-crypt - Encrypt a password in MD5 format
guessfstype - guess the device file system type
H
halt, reboot, poweroff, suspend - stop the system.
hdparm - get/set hard disk parameters
hisaxctrl - configure HiSax-Module
hotplug - Linux hotplugging support scripts
8:hprop
8:hpropd
hwclock - query and set the hardware clock (RTC)
hwinfo - probe for hardware
I
icnctrl - configure ICN ISDN adaptor
ifconfig - configure a network interface
ifup - start a preconfigured net interface.
ifdown - stop a (preconfigured) net interface.
ifstatus - show the state of a (preconfigured) net interface.
imon - watch ISDN activities
imontty - display status of all ISDN lines
tftpd - IPv4 Trivial File Transfer Protocol server
init, telinit - process control initialization
insmod -- simple program to insert a module into the Linux Kernel
insmod - install loadable kernel module
Insserv - Enable an installed system init script
intro - Introduction to administration and privileged commands
ip - show / manipulate routing, devices, policy routing and tunnels
ip6tables - IPv6 packet filter administration
ipcrm - remove a message queue, semaphore set or shared memory id
ipcs - provide information on ipc facilities
ipppd - (ISDN) Point to Point Protocol daemon
pppstats - print PPP statistics
iprofd - Modem-register daemon
iptables - administration tool for IPv4 packet filtering and NAT
iptables-restore - Restore IP Tables
iptables-save - Save IP Tables
iptraf - Interactive Colorful IP LAN Monitor
ipx_cmd - bridge between Novell's SCMD driver and local IPX network
ipx_configure - query/configure IPX behavior
ipx_interface - add, delete, or display an IPX interface
ipx_internal_net - add or delete the IPX internal network
ipx_route - add or delete IPX route
isdnctrl - get/set ISDN device information
devdump, isoinfo, isovfy, isodump - Utility programs for dumping and verifying iso9660 images.
devdump, isoinfo, isovfy, isodump - Utility programs for dumping and verifying iso9660 images.
isosize - outputs the length of a iso9660 file system
devdump, isoinfo, isovfy, isodump - Utility programs for dumping and verifying iso9660 images.
Isserial - determines if the underlying tty of stdin is a serial line
itox - converts inetd.conf style configuration files to xinetd.conf
iwconfig - configure a wireless network interface
iwevent - Display Wireless Events generated by drivers and setting changes
iwgetid - Report ESSID, NWID or AP/Cell Address of wireless network
iwlist - Get wireless statistics from specific nodes
iwpriv - configure optionals (private) parameters of a wireless network interface
iwspy - Get wireless statistics from specific nodes
J
jfs_debugfs - shell-type JFS file system editor
jfs_fsck - initiate replay of the JFS transaction log, and check and repair a JFS formatted device
jfs_fscklog - extract a JFS fsck service log into a file and/or format and display the extracted file
jfs_logdump - dump a JFS formatted device's journal log
jfs_mkfs - create a JFS formatted partition
jfs_tune - adjust tunable file system parameters on JFS
K
8:kadmin
8:kadmind
kallsyms - Extract all kernel symbols for debugging
kbdrate - reset the keyboard repeat rate and delay time
8:kdc
8:kerberos
8:kfd
killall5 -- send a signal to all processes.
Killproc - Send signals to processes by full path name
klogconsole - Tells the kernel to what terminal it should copy messages
klogd - Kernel Log Daemon
8:kpasswdd
8:kstash
ksymoops - a utility to decode Linux kernel Oops
ksyms - display exported kernel symbols.
8:ktutil
8:kxd
L
lastlog - examine lastlog file
ld.so, ld-linux.so* - dynamic linker/loader
/sbin/ldconfig - configure dynamic linker run time bindings
lilo - install boot loader
lmtp - Postfix local delivery via LMTP
loadunimap - load the kernel unicode-to-font mapping table
local - Postfix local mail delivery
rpc.lockd - start kernel lockd process
logrotate - rotates, compresses, and mails system logs
logsave - save the output of a command in a logfile
loopctrl - configure isdnloop ISDN driver
losetup - set up and control loop devices
lpadmin - configure cups printers and classes
lpc - line printer control program
lpinfo - show available devices or drivers
lpmove - move a job to a new destination
lsdev - display information about installed hardware
lsmod -- program to show the status of modules in the Linux Kernel
lsmod - list loaded modules.
lsof - list open files
lspci - list all PCI devices
lsraid - List and query Linux md devices.
lsscsi - list all SCSI devices (or hosts) currently on system
lsusb - list all USB devices
lvchange - change attributes of a logical volume
lvcreate - create a logical volume in an existing volume group
lvdisplay - display attributes of a logical volume
lvextend - extend the size of a logical volume
lvm - Linux Logical Volume Manager
lvmchange - change attributes of the logical volume manager
lvmcreate_initrd - create an initial ramdisk to boot with root on a logical volume
lvmdiskscan - scan for all disks / multiple devices / partitions available
lvmsadc - LVM system activity data collector
lvmsar - LVM system activity reporter
lvreduce - reduce the size of a logical volume
lvremove - remove a logical volume
lvrename - rename a logical volume
lvscan - scan (all disks) for logical volumes
M
makedbm - create or dump a ypserv database file
MAKEDEV - create devices
mandb - create or update the manual page index caches
mapscrn - load screen output mapping table
master - Postfix master process
mdadm - manage MD devices aka Linux Software Raid.
microcode_ctl - microcode utility for Intel IA32 processors
mii-tool - view, manipulate media-independent interface status
mingetty - minimal getty for consoles
mkdosfs - create an MS-DOS file system under Linux
mke2fs - create an ext2/3 filesystem
mkfs - build a Linux file system
mkfs.bfs - make an SCO bfs filesystem
mke2fs - create an ext2/3 filesystem
mke2fs - create an ext2/3 filesystem
jfs_mkfs - create a JFS formatted partition
mkfs.minix - make a Linux MINIX filesystem
mkdosfs - create an MS-DOS file system under Linux
mkfs.xfs - construct an XFS filesystem
8:mkhybrid
mkisofs - create an hybrid ISO9660/JOLIET/HFS filesystem with optional Rock Ridge attributes.
mknetid - generate data for netid map
mkntfs - create a NTFS 1.2 (Windows NT/2000/XP) file system
mkraid - initializes/upgrades RAID device arrays
mkreiserfs - create a Linux ReiserFS file system
mkrescue - make rescue floppy
mkswap - set up a Linux swap area
modify_resolvconf - modify /etc/resolv.conf
modinfo -- program to show information about a Linux Kernel module
modinfo - display information about a kernel module
modprobe -- program to add and remove modules from the Linux Kernel
modprobe - high level handling of loadable modules
mount - mount a file system
ncpmount, mount.ncp - mount volume(s) from a specified NetWare fileserver.
rpc.mountd - NFS mount daemon
mrtd - Multi-threaded Routing Toolkit Daemon
mtr - a network diagnostic tool
N
nameif - name network interfaces based on MAC addresses
ncpd - Daemon which handles the serial link to a Psion
ncpmount, mount.ncp - mount volume(s) from a specified NetWare fileserver.
ncpumount - unmount a NetWare filesystem mounted with ncpmount.
netdate - set date and time by ARPA Internet RFC 868
netdiag - Network adapter hardware-level diagnostics
netstat - Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships
newusers - update and create new users in batch
rpc.nfsd - NFS server process
nfsstat - print NFS statistics
ngrep - network grep
nhfsgraph - Run nhfsstone over multiple loads
[[8:nhfsnums|nhfsnums - Convert nhfsrun output to plot(5)
]]
nhfsrun - Run nhfsstone over multiple loads
nhfsstone - Network File System benchmark program
nnmaster - nn database manager
nnspew - subject database manager (nn)
8:nologin
nqmgr - Postfix queue manager
/usr/sbin/nscd - name service cache daemon
8:nscd_nischeck
nsupdate - Dynamic DNS update utility
ntfsfix - tool for fixing NTFS partitions altered by the Linux kernel NTFS driver.
ntfsinfo - dump a file's attributes
ntfslabel - display/change the label on an ntfs file system
8:ntfsprogs
ntfsresize - resize an NTFS filesystem
ntfsundelete - recover a deleted file from an NTFS volume.
ntop - display top network users
nwbocreate - Create a NetWare Bindery Object
nwborm - Remove a NetWare Bindery Object
nwbpadd - Set the value of a NetWare Bindery Property
nwbpcreate - Create a NetWare Bindery Propery
nwbprm - Remove a NetWare Bindery Propery
nwfsctrl - Perform server command
nwgrant - Add Trustee Rights to a directory
nwmsg - Deliver NetWare user broadcast messages
nwrevoke - Revoke a Trustee Right from a directory
P
Linux-PAM - Pluggable Authentication Modules for Linux
8:pam.conf
8:pam.d
pam_auth - Squid PAM authentication helper
pam_krb5 - Kerberos 5 authentication
pam_krb5afs - Kerberos 5 authentication with AFS support
pam_localuser - require users to be listed in /etc/passwd
8:pam_passwdqc
pam_pwcheck - PAM module for password strength checking
pam_resmgr - PAM module for resource manager
pam_succeed_if - succeed or fail based on account characteristics
pam_unix2 - Standard PAM module for traditional password authentication
pam_xauth - forward xauth keys between users
papd - AppleTalk print server daemon
papstatus - get the status of an AppleTalk-connected printer
GNU Parted - a partition manipulation program
partprobe - inform the OS of partition table changes
pcbitctl - PCBIT-D firmware loader
pg3, ipg, pgset - send stream of UDP packets
pickup - Postfix local mail pickup
pidof -- find the process ID of a running program.
8:pidofproc
ping, ping6 - send ICMP ECHO_REQUEST to network hosts
ping, ping6 - send ICMP ECHO_REQUEST to network hosts
pipe - Postfix delivery to external command
pivot_root - change the root file system
plipconfig - fine tune PLIP device parameters
plpnfsd - Daemon to mount a Psion like an NFS file-system
plpprintd - Daemon for printing via PC from a Psion.
pmap_dump - print a list of all registered RPC programs
pmap_set - set the list of registered RPC programs
popauth -- manipulate POP authorization DB
qpopper -- POP3 server (v4.0)
8:portmap
powerd - UPS monitoring daemon
8:poweroff
pptp - PPTP driver
procinfo - display system status gathered from /proc
proxymap - Postfix lookup table proxy server
psf - PostScript filter
pure-authd - External authentication agent for Pure-FTPd.
pure-ftpd - simple File Transfer Protocol server
pure-ftpwho - Report current FTP sessions
pure-mrtginfo - provide an MRTG-graphable user count for ftpd
pure-pw - Manage virtual users files for Pure-FTPd
pure-pwconvert - Generate a virtual users file from system accounts
pure-quotacheck - Update virtual quota files for Pure-FTPd
pure-statsdecode - Show human-readable dates from a "stats" logfile
pure-uploadscript - Automatically run an external program after a successful upload
8:push
pvchange - change attributes of a physical volume
pvcreate - initialize a disk or partition for use by LVM
pvdata - shows debugging information about a physical volume
pvdisplay - display attributes of a physical volume
pvmove - move physical extents
pvpath - change or query path attributes of a physical multipathed volume
pvpathrestore - restore path configuration from config file
pvpathsave - save the current state and weight of all paths
pvresize - resize a physical volume in a volume group
pvscan - scan all disks for physical volumes
pwck - verify integrity of password files
pwconv, pwunconv, grpconv, grpunconv - convert to and from shadow passwords and groups.
8:pwunconv
pwupdate - updates passwd and shadow NIS map
qmgr - Postfix queue manager
qmqpd - Postfix QMQP server
quot - summarize filesystem ownership
quotacheck - scan a filesystem for disk usage, create, check and repair quota files
quotaon, quotaoff - turn filesystem quotas on and off
R
radvd - router advertisement daemon for IPv6
radvdump - dump router advertisements
raid0run - starts up old (superblock-less) RAID0/LINEAR arrays
raidadd, - obsolete RAID command
raidreconf - reconfigure RAID arrays
raidrun, - obsolete RAID command
raidstart, raidstop, - command set to manage md devices.
8:raidstop
8:ramsize
rarp - manipulate the system RARP table
raw - bind a Linux raw character device
rdev - query/set image root device, RAM disk size, or video mode
rdisc - network router discovery daemon
8:reboot
reiserfsck - check a Linux Reiserfs file system
reiserfstune
accept/reject - accept/reject jobs sent to a destination
8:renice
repquota - summarize quotas for a filesystem
resize_reiserfs - Reiserfs filesystem resizer
resize2fs - ext2 file system resizer
resizecons - change kernel idea of the console size
resmgrd - resource manager daemon
revnetgroup - generate reverse netgroup data
8:rinetd
rmmod -- simple program to insert a module into the Linux Kernel
rmmod - unload loadable modules
rndc - name server control utility
rndc-confgen - rndc key generation tool
8:rootflags
route - show / manipulate the IP routing table
rpasswdd - remote password update daemon
rpc.mountd - NFS mount daemon
rpc.nfsd - NFS server process
rpc.statd - NSM status monitor
rpc.yppasswdd - NIS password update daemon
rpc.ypxfrd - NIS map transfer server
8:rpcinfo
rpm - RPM Package Manager
rpm2cpio - Extract cpio archive from RPM Package Manager (RPM) package.
rpmbuild - Build RPM Package(s)
rpmcache - Cache RPM Package Headers
rpmdeps - Generate RPM Package Dependencies
rpmgraph - Display RPM Package Dependency Graph
rpmqpack - check for installed rpm packages
rquotad, rpc.rquotad - remote quota server
runlevel -- find the current and previous system runlevel.
[[8:rvnamed|rvnamed - reverse name resolution daemon for iptraf(8)
]]
S
sa - summarizes accounting information
sa1 - Collect and store binary data in the system activity daily data file.
sa2 - Write a daily report in the /var/log/sa directory.
sadc - System activity data collector.
sasldblistusers - list users in sasldb
saslpasswd - set a user's sasl password
SCPM - System Configuration Profile Management
sg_devfs_scan - Scan SCSI devices within a devfs tree
scsidev - populate /dev/scsi with device names that are persistent against SCSI configuration changes.
scsiformat - low level format an scsi disk device
scsiinfo - query information from a scsi device
sensord - Sensor information logging daemon.
setcap - set file capabilities
8:setconsole
setfdprm - sets user-provided floppy disk parameters
setfont - load EGA/VGA console screen font
setkeycodes - load kernel scancode-to-keycode mapping table entries
setpci - configure PCI devices
setquota - set disk quotas
setserial - get/set Linux serial port information
setsid - run a program in a new session
sfdisk - Partition table manipulator for Linux
8:sftp-server
sg_dd - copies data to and from sg and raw devices
sg_inq - outputs data retrieved from the SCSI INQUIRY command
sg_logs - reads SCSI LOG SENSE pages
sg_map - displays mapping between sg and other SCSI devices
sg_modes - reads SCSI MODE SENSE pages
sg_rbuf - reads data using SCSI READ BUFFER command
sg_read - read blocks of data continually from same offset
sg_readcap - calls a READ CAPACITY command on a SCSI device
sg_reset - exercises SCSI device/bus/host reset capability
sg_scan - does a SCSI bus scan and prints the results to standard output
sg_senddiag - performs a SCSI SEND DIAGNOSTIC command
sg_start - starts (spins-up) or stops (spins down) SCSI devices
sg_test_rwbuf - Tests the SCSI host adapter by issueing write and read operations on a device's buffer and calculating checksums.
sg_turs - executes a user specified number of TEST UNIT READY commands on the given device
sgdefects - get SCSI device defect lists
sgdiag - Do Diagnostic functions on SCSI devices
sgdskfl - SCSI Disk Firmware Load utility
sginfo - outputs mode sense information for a SCSI generic device the given device
sgm_dd - copies data to and from sg and raw devices
sgmode - SCSI Mode Page utility
sgp_dd - copies data to and from sg and raw devices
sgraidmon - SCSI Generic RAID Monitor
Showconsole - determines the underlying tty of stdin
Setconsole - sets the underlying tty of /dev/console
showconsolefont - Show the current EGA/VGA console screen font
showmount - show mount information for an NFS server
showq - list the Postfix mail queue
shutdown - bring the system down
slapadd - Add entries to a SLAPD database
slapcat - SLAPD database to LDIF utility
slapd - Stand-alone LDAP Daemon
slapindex - SLAPD index to LDIF utility
slappasswd - OpenLDAP password utility
slattach - attach a network interface to a serial line
sln - static ln
slurpd - Standalone LDAP Update Replication Daemon
smartctl - Control and Monitor Utility for SMART Disks
smartd - SMART Disk Monitoring Daemon
smtp - Postfix remote delivery via SMTP
smtpd - Postfix SMTP server
snmptrapd - Receive and log snmp trap messages.
spawn - Postfix external command spawner
squid - proxy caching server
squid_ldap_auth - Squid LDAP authentication helper
squid_ldap_group - Squid LDAP external acl group helper
src_vipa - flexible source address selection
8:sshd
8:ssh-keysign
Startproc - Start processes identified by path name
Start_daemon - Start processes identified by path name
startpar - start runlevel scripts in parallel
Startproc - Start processes identified by path name
Start_daemon - Start processes identified by path name
rpc.statd - NSM status monitor
straps - A simple SNMP trap multiplexer.
8:string2key
sudo - execute a command as another user
sulogin -- Single-user login
8:swapoff
swapon, swapoff - enable/disable devices and files for paging and swapping
8:swsusp
sync - synchronize data on disk with memory
sysctl - configure kernel parameters at runtime
sysklogd - Linux system logging utilities.
8:syslogd
T
tc - show / manipulate traffic control settings
CBQ - Class Based Queueing
HTB - Hierarchy Token Bucket
pfifo - Packet limited First In, First Out queue
tcpd - access control facility for internet services
tcpdchk - tcp wrapper configuration checker
tcpdmatch - tcp wrapper oracle
pfifo_fast - three-band first in, first out queue
PRIO - Priority qdisc
red - Random Early Detection
8:telinit
tftpd - IPv4 Trivial File Transfer Protocol server
timelord - Macintosh time server daemon
tlsmgr - Postfix TLS session cache and PRNG handling manager
tracepath, tracepath6 - traces path to a network host discovering MTU along this path
trivial-rewrite - Postfix address rewriting and resolving daemon
tune2fs - adjust tunable filesystem parameters on second extended filesystems
tunelp - set various parameters for the lp device
tzselect - select a time zone
U
umount - unmount file systems
unix_chkpwd - helper binary that verifies the password of the current user
unix2_chkpwd - helper binary that verifies the password of the current user
update-pciids - download new version of the PCI ID list
usbmodules - List kernel driver modules available for a plugged in USB device
useradd - create a new user account
userdel - delete an user account
usermod - Modify a user account
V
8:verify_krb5_conf
vgcfgbackup - backup volume group descriptor area
vgcfgrestore - restore volume group descriptor area
vgchange - change attributes of a volume group
vgck - check volume group descriptor area
vgcreate - create a volume group
vgdisplay - display attributes of volume groups
vgexport - make volume groups unknown to the system
vgextend - add physical volumes to a volume group
vgimport - make volume groups known to the system
vgmerge - merge two volume groups
vgmknodes - create volume group directory and special files
vgreduce - reduce a volume group
vgremove - remove a volume group
vgrename - rename a volume group
vgscan - scan all disks for volume groups and build /etc/lvmtab and /etc/lvmtab.d/* which are the database for all other lvm commands.
vgsplit - split a volume groups
8:vidmode
8:vigr
vipw, vigr - edit the password, group, shadow-password, or shadow-group file.
virtual - Postfix virtual domain mail delivery agent
visudo - edit the sudoers file
vmstat - Report virtual memory statistics
8:vsftpd
W
warnquota - send mail to users over quota
whosond - whoson database daemon
wwwoffled - A proxy server for the World Wide Web Offline Explorer.
X
xconv.pl - inetd.conf to xinetd.conf converter
xfs_admin - change parameters of an XFS filesystem
xfs_bmap - print block mapping for an XFS file
xfs_check - check XFS filesystem consistency
xfs_copy - copy the contents of an XFS filesystem
xfs_db - debug an XFS filesystem
xfs_freeze - suspend access to an XFS filesystem
xfs_growfs, xfs_info - expand an XFS filesystem
xfs_growfs, xfs_info - expand an XFS filesystem
xfs_io - debug the IO path of an XFS filesystem
xfs_logprint - print the log of an XFS filesystem
xfs_mkfile - create an XFS file
xfs_ncheck - generate pathnames from i-numbers for XFS
xfs_repair - repair an XFS filesystem
xfs_rtcp - XFS realtime copy command
xinetd - the extended Internet services daemon
xinetd.log - xinetd service log format
Y
YaST2 - universal configuration utility
yphelper - helper application for internal use
ypinit - NIS database install and build program
8:yppasswdd
yppush - force propagation of changed NIS databases
ypserv - NIS server
ypxfr - transfer NIS database from remote server to local host
8:ypxfrd
Z
zcav - program to test raw hard drive throughput.
zdump - time zone dumper
zic - time zone compiler