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SuperMan Pages: System Environment/Base

Command Description Package

chacl

change the access control list of a file or directory

acl

getfacl

get file access control lists

acl

setfacl

set file access control lists

acl

adjtimex

display or set the kernel time variables

adjtimex

anacron

runs commands periodically

anacron

arptables

administration tool for arp packet filtering

arptables_jf

attr

extended attributes on XFS filesystem objects

attr

getfattr

get extended attributes of filesystem objects

attr

setfattr

set extended attributes of filesystem objects

attr

authconfig

an interface for configuring system authentication resources

authconfig

brctl

ethernet bridge administration

bridge-utils

ccsd

The daemon used to access CCS cluster configuration files

ccs

alternatives

maintain symbolic links determining default commands

chkconfig

chkconfig

updates and queries runlevel information for system services

chkconfig

chkfontpath

simple interface for adding, removing, and listing direc tories in the X font server’s path

chkfontpath

basename

strip directory and suffix from filenames

coreutils

cat

concatenate files and print on the standard output

coreutils

chcon

change security context

coreutils

chgrp

change group ownership

coreutils

chmod

change file access permissions

coreutils

chown

change file owner and group

coreutils

chroot

run command or interactive shell with special root directory

coreutils

cksum

checksum and count the bytes in a file

coreutils

comm

compare two sorted files line by line

coreutils

cp

copy files and directories

coreutils

csplit

split a file into sections determined by context lines

coreutils

cut

remove sections from each line of files

coreutils

date

print or set the system date and time

coreutils

dd

convert and copy a file

coreutils

df

report filesystem disk space usage

coreutils

dircolors

color setup for ls

coreutils

dir

list directory contents

coreutils

dirname

strip non-directory suffix from file name

coreutils

du

estimate file space usage

coreutils

echo

display a line of text

coreutils

env

run a program in a modified environment

coreutils

expand

convert tabs to spaces

coreutils

expr

evaluate expressions

coreutils

factor

factor numbers

coreutils

false

do nothing, unsuccessfully

coreutils

fmt

simple optimal text formatter

coreutils

fold

wrap each input line to fit in specified width

coreutils

groups

print the groups a user is in

coreutils

head

output the first part of files

coreutils

hostid

print the numeric identifier for the current host

coreutils

id

print real and effective UIDs and GIDs

coreutils

join

join lines of two files on a common field

coreutils

link

call the link function to create a link to a file

coreutils

ln

make links between files

coreutils

logname

print user´s login name

coreutils

ls

list directory contents

coreutils

md5sum

compute and check MD5 message digest

coreutils

mkdir

make directories

coreutils

mkfifo

make FIFOs (named pipes)

coreutils

mknod

make block or character special files

coreutils

mv

move (rename) files

coreutils

nice

run a program with modified scheduling priority

coreutils

nl

number lines of files

coreutils

nohup

run a command immune to hangups, with output to a non-tty

coreutils

od

dump files in octal and other formats

coreutils

paste

merge lines of files

coreutils

pathchk

check whether file names are valid or portable

coreutils

pinky

lightweight finger

coreutils

pr

convert text files for printing

coreutils

printenv

print all or part of environment

coreutils

printf

format and print data

coreutils

ptx

produce a permuted index of file contents

coreutils

pwd

print name of current/working directory

coreutils

readlink

display value of a symbolic link

coreutils

rmdir

remove empty directories

coreutils

rm

remove files or directories

coreutils

runcon

run command with specified security context

coreutils

runuser

run a shell with substitute user and group IDs, similar to su, but will not prompt for password

coreutils

seq

print a sequence of numbers

coreutils

sha1sum

compute and check SHA1 message digest

coreutils

shred

delete a file securely, first overwriting it to hide its contents

coreutils

sleep

delay for a specified amount of time

coreutils

sort

sort lines of text files

coreutils

split

split a file into pieces

coreutils

stat

display file or filesystem status

coreutils

stty

change and print terminal line settings

coreutils

sum

checksum and count the blocks in a file

coreutils

su

run a shell with substitute user and group IDs

coreutils

sync

flush filesystem buffers

coreutils

tac

concatenate and print files in reverse

coreutils

tail

output the last part of files

coreutils

tee

read from standard input and write to standard output and files

coreutils

test

check file types and compare values

coreutils

touch

change file timestamps

coreutils

tr

translate or delete characters

coreutils

true

do nothing, successfully

coreutils

tsort

perform topological sort

coreutils

tty

print the file name of the terminal connected to standard input

coreutils

uname

print system information

coreutils

unexpand

convert spaces to tabs

coreutils

uniq

remove duplicate lines from a sorted file

coreutils

unlink

call the unlink function to remove the specified file

coreutils

users

print the user names of users currently logged in to the cur rent host

coreutils

vdir

list directory contents

coreutils

wc

print the number of newlines, words, and bytes in files

coreutils

whoami

print effective userid

coreutils

who

show who is logged on

coreutils

yes

output a string repeatedly until killed

coreutils

createrepo

Create repomd (xml-rpm-metadata) repository

createrepo

dmsetup

low level logical volume management

device-mapper

kpartx

Create device maps from partition tables

device-mapper-multipath

multipath

Device mapper target autoconfig

device-mapper-multipath

multipathd

multipath daemon

device-mapper-multipath

dhclient

Dynamic Host Configuration Protocol Client

dhclient

dhcp6c

DHCPv6 client daemon

dhcpv6_client

dmraid

discover and activate software (ATA)RAID

dmraid

badblocks

search a device for bad blocks

e2fsprogs

blkid

command-line utility to locate/print block device attributes

e2fsprogs

chattr

change file attributes on a Linux second extended file system

e2fsprogs

debugfs

ext2/ext3 file system debugger

e2fsprogs

dumpe2fs

dump ext2/ext3 filesystem information

e2fsprogs

e2fsck

check a Linux ext2/ext3 file system

e2fsprogs

e2image

Save critical ext2/ext3 filesystem metadata to a file

e2fsprogs

e2label

Change the label on an ext2/ext3 filesystem

e2fsprogs

ext2online

online (mounted) ext2 filesystem resizer

e2fsprogs

filefrag

report on file fragmentation

e2fsprogs

findfs

Find a filesystem by label or UUID

e2fsprogs

fsck

check and repair a Linux file system

e2fsprogs

logsave

save the output of a command in a logfile

e2fsprogs

lsattr

list file attributes on a Linux second extended file system

e2fsprogs

mke2fs

create an ext2/ext3 filesystem

e2fsprogs

resize2fs

ext2/ext3 file system resizer

e2fsprogs

tune2fs

adjust tunable filesystem parameters on ext2/ext3 filesystems

e2fsprogs

uuidgen

command-line utility to create a new UUID value

e2fsprogs

eject

eject removable media

eject

volname

return volume name

eject

fenced

the I/O Fencing daemon

fence

genromfs

create a romfs image

genromfs

grub

the grub shell

grub

mbchk

check the format of a Multiboot kernel

grub

autoipd

internet address self-assigner

howl

mDNSResponder

mDNS service responder daemon

howl

nifd

network interface monitor daemon

howl

infokey

compile customizations for Info

info

info

read Info documents

info

consoletype

print type of the console connected to standard input

initscripts

doexec

run an executable with an arbitrary argv[0]

initscripts

genhostid

generate and set a hostid for the current host

initscripts

initlog

log messages and events to the system logger

initscripts

ipcalc

perform simple manipulation of IP addresses

initscripts

netreport

request notification of network interface changes

initscripts

usernetctl

allow a user to manipulate a network interface if permitted

initscripts

usleep

sleep some number of microseconds

initscripts

racoonctl

racoon administrative control tool

ipsec-tools

racoon

IKE (ISAKMP/Oakley) key management daemon

ipsec-tools

setkey

manually manipulate the IPsec SA/SP database

ipsec-tools

iptables

administration tool for IPv4 packet filtering and NAT

iptables

ip6tables

IPv6 packet filter administration

iptables-ipv6

iptstate

A top-like display of IP Tables state table entries

iptstate

irqbalance

distribute hardware interrupts across processors on a mul tiprocessor system

irqbalance

jsattach

attach a serial line to a joystick device

joystick

jscal

joystick calibration program

joystick

jstest

joystick test program

joystick

chvt

change foreground virtual terminal

kbd

deallocvt

deallocate unused virtual consoles

kbd

dumpkeys

dump keyboard translation tables

kbd

fgconsole

print the number of the active VT

kbd

getkeycodes

print kernel scancode-to-keycode mapping table

kbd

kbdrate

reset the keyboard repeat rate and delay time

kbd

loadkeys

load keyboard translation tables

kbd

loadunimap

load the kernel unicode-to-font mapping table

kbd

mapscrn

load screen output mapping table

kbd

openvt

start a program on a new virtual terminal (VT)

kbd

psfaddtable

add a Unicode character table to a console font

kbd

psfgettable

extract the embedded Unicode character table from a con sole font

kbd

psfstriptable

remove the embedded Unicode character table from a con sole font

kbd

psfxtable

handle Unicode character tables for console fonts

kbd

resizecons

change kernel idea of the console size

kbd

setfont

load EGA/VGA console screen font

kbd

setkeycodes

load kernel scancode-to-keycode mapping table entries

kbd

setleds

set the keyboard leds

kbd

setmetamode

define the keyboard meta key handling

kbd

showconsolefont

Show the current EGA/VGA console screen font

kbd

showkey

examine the codes sent by the keyboard

kbd

lchage

Display or change user password policy

libuser

lchfn

Change finger information

libuser

lchsh

Change login shell

libuser

lgroupadd

Add an user group

libuser

lgroupdel

Delete an user group

libuser

lgroupmod

Modify an user group

libuser

lid

Display user's groups or group's users

libuser

lnewusers

Create new user accounts

libuser

lpasswd

Change group or user password

libuser

luseradd

Add an user

libuser

luserdel

Delete an user

libuser

lusermod

Modify an user

libuser

logrotate

rotates, compresses, and mails system logs

logrotate

longrun

Transmeta(TM) Crusoe(TM) LongRun(TM) utility

longrun

clvmd

cluster LVM daemon

lvm2-cluster

lvchange

change attributes of a logical volume

lvm2

lvcreate

create a logical volume in an existing volume group

lvm2

lvdisplay

display attributes of a logical volume

lvm2

lvextend

extend the size of a logical volume

lvm2

lvmchange

change attributes of the logical volume manager

lvm2

lvmdiskscan

scan for all devices visible to LVM2

lvm2

lvm

LVM2 tools

lvm2

lvreduce

reduce the size of a logical volume

lvm2

lvremove

remove a logical volume

lvm2

lvrename

rename a logical volume

lvm2

lvresize

resize a logical volume

lvm2

lvscan

scan (all disks) for logical volumes

lvm2

lvs

report information about logical volumes

lvm2

pvchange

change attributes of a physical volume

lvm2

pvcreate

initialize a disk or partition for use by LVM

lvm2

pvdisplay

display attributes of a physical volume

lvm2

pvmove

move physical extents

lvm2

pvremove

remove a physical volume

lvm2

pvscan

scan all disks for physical volumes

lvm2

pvs

report information about physical volumes

lvm2

vgcfgbackup

backup volume group descriptor area

lvm2

vgcfgrestore

restore volume group descriptor area

lvm2

vgchange

change attributes of a volume group

lvm2

vgck

check volume group metadata

lvm2

vgconvert

convert volume group metadata format

lvm2

vgcreate

create a volume group

lvm2

vgdisplay

display attributes of volume groups

lvm2

vgexport

make volume groups unknown to the system

lvm2

vgextend

add physical volumes to a volume group

lvm2

vgimport

make exported volume groups known to the system

lvm2

vgmerge

merge two volume groups

lvm2

vgmknodes

recreate volume group directory and logical volume special files

lvm2

vgreduce

reduce a volume group

lvm2

vgremove

remove a volume group

lvm2

vgrename

rename a volume group

lvm2

vgscan

scan all disks for volume groups and rebuild caches

lvm2

vgsplit

split a volume group into two

lvm2

vgs

report information about volume groups

lvm2

MAKEDEV

create devices

MAKEDEV

apropos

search the whatis database for strings

man

makewhatis

Create the whatis database

man

man2html

format a manual page in html

man

man

format and display the on-line manual pages

man

manpath

format and display the on-line manual pages

man

whatis

search the whatis database for complete words

man

mdadm

manage MD devices aka Linux Software Raid

mdadm

mdassemble

assemble MD devices aka Linux Software Raid

mdadm

mdmpd

daemon to monitor MD multipath devices

mdadm

mingetty

minimal getty for consoles

mingetty

mkbootdisk

creates a stand-alone boot floppy for the running system

mkbootdisk

grubby

command line tool for configuring grub, lilo, and elilo

mkinitrd

mkinitrd

creates initial ramdisk images for preloading modules

mkinitrd

nash

script interpretor to interpret linuxrc images

mkinitrd

mktemp

make temporary filename (unique)

mktemp

arp

manipulate the system ARP cache

net-tools

dnsdomainname

show the system's DNS domain name

net-tools

domainname

show or set the system's NIS/YP domain name

net-tools

hostname

show or set the system's host name

net-tools

ifconfig

configure a network interface

net-tools

nameif

name network interfaces based on MAC addresses

net-tools

netplugd

network cable hotplug management daemon

net-tools

netstat

Print network connections, routing tables, interface statis tics, masquerade connections, and multicast memberships

net-tools

nisdomainname

show or set system's NIS/YP domain name

net-tools

plipconfig

fine tune PLIP device parameters

net-tools

route

show / manipulate the IP routing table

net-tools

slattach

attach a network interface to a serial line

net-tools

ypdomainname

show or set the system's NIS/YP domain name

net-tools

ntsysv

simple interface for configuring runlevels

ntsysv

numactl

Control NUMA policy for processes or shared memory

numactl

ipmicmd

An IPMI Command Interface

OpenIPMI

ipmilan

IPMI LAN to System Interface Converter

OpenIPMI

ipmish

Shell interface to an IPMI system

OpenIPMI

afs5log

AFS token initializer

pam_krb5

passwd

update a user's authentication tokens(s)

passwd

pinfo

curses based lynx-style info browser

pinfo

pman

curses based lynx-style info browser

pinfo

vbetool

run real-mode video BIOS code to alter hardware state

pm-utils

audit2allow

generate policy allow rules from logs of denied operations

policycoreutils

audit2why

Translates SELinux audit messages into a description of why the access was denied

policycoreutils

fixfiles

fix file security contexts

policycoreutils

genhomedircon

generate file context configuration entries for user home directories

policycoreutils

newrole

run a shell with a new role

policycoreutils

restorecon

set file security contexts

policycoreutils

sestatus

SELinux status tool

policycoreutils

setfiles

set file security contexts

policycoreutils

execstack

tool to set, clear, or query executable stack flag of ELF binaries and shared libraries

prelink

prelink

prelink ELF shared libraries and binaries to speed up startup time

prelink

convertquota

convert quota from old file format to new one

quota

edquota

edit user quotas

quota

quotacheck

scan a filesystem for disk usage, create, check and repair quota files

quota

quota

display disk usage and limits

quota

quotaon

turn filesystem quotas on and off

quota

quotastats

Program to query quota statistics

quota

repquota

summarize quotas for a filesystem

quota

rquotad

remote quota server

quota

setquota

set disk quotas

quota

warnquota

send mail to users over quota

quota

xqmstats

Display XFS quota manager statistics from /proc

quota

debugreiserfs

The debugging tool for the ReiserFS filesystem

reiserfs-utils

mkreiserfs

The create tool for the Linux ReiserFS filesystem

reiserfs-utils

reiserfsck

The checking tool for the ReiserFS filesystem

reiserfs-utils

reiserfstune

The tunning tool for the ReiserFS filesystem

reiserfs-utils

clubufflush

Flush buffers on a service's file system

rgmanager

clufindhostname

Find a hostname or IP address given the other

rgmanager

clulog

Log a message to the cluster and/or system logs

rgmanager

clunfsops

Manipulate NFS

rgmanager

clurmtabd

Cluster NFS Remote Mount Table Daemon

rgmanager

clushutdown

Cluster Mass Service Shutdown

rgmanager

clustat

Cluster Status Utility

rgmanager

clusvcadm

Cluster User Service Administration Utility

rgmanager

rngd

Check and feed random data from hardware device to kernel random device

rng-utils

rngtest

Check the randomness of data using FIPS 140-2 tests

rng-utils

gendiff

utility to aid in error-free diff file generation

rpm

rpm2cpio

Extract cpio archive from RPM Package Manager (RPM) package

rpm

rpm

RPM Package Manager

rpm

adduser

Create a new user or update default new user information

shadow-utils

chage

change user password expiry information

shadow-utils

chpasswd

update passwords in batch mode

shadow-utils

faillog

display faillog records or set login failure limits

shadow-utils

gpasswd

administer the /etc/group file

shadow-utils

groupadd

Create a new group

shadow-utils

groupdel

Delete a group

shadow-utils

groupmod

modify a group

shadow-utils

grpck

verify integrity of group files

shadow-utils

grpconv

convert to and from shadow passwords and groups

shadow-utils

grpunconv

convert to and from shadow passwords and groups

shadow-utils

lastlog

examine lastlog file

shadow-utils

newgrp

log in to a new group

shadow-utils

newusers

update and create new users in batch

shadow-utils

pwck

verify integrity of password files

shadow-utils

pwconv

convert to and from shadow passwords and groups

shadow-utils

pwunconv

convert to and from shadow passwords and groups

shadow-utils

sg

execute command as different group ID

shadow-utils

useradd

Create a new user or update default new user information

shadow-utils

userdel

Delete a user account and related files

shadow-utils

usermod

Modify a user account

shadow-utils

smartctl

Control and Monitor Utility for SMART Disks

smartmontools

smartd

SMART Disk Monitoring Daemon

smartmontools

halt

stop the system

SysVinit

init

process control initialization

SysVinit

killall5

send a signal to all processes

SysVinit

lastb

show listing of last logged in users

SysVinit

last

show listing of last logged in users

SysVinit

mesg

control write access to your terminal

SysVinit

pidof

find the process ID of a running program

SysVinit

poweroff

stop the system

SysVinit

reboot

stop the system

SysVinit

runlevel

find the current and previous system runlevel

SysVinit

shutdown

bring the system down

SysVinit

sulogin

Single-user login

SysVinit

telinit

process control initialization

SysVinit

wall

send a message to everybody’s terminal

SysVinit

tmpwatch

removes files which haven't been accessed for a period of time

tmpwatch

udevd

udev event serializer daemon and udev event sender

udev

udevinfo

retrieve information from udev

udev

udev

Linux configurable dynamic device naming support

udev

udevsend

udev event serializer daemon and udev event sender

udev

udevstart

populate initial device directory

udev

udevtest

simulates a udev run to test the configured rules

udev

rhnsd

a program for querying the Red Hat Network for updates and information

up2date

up2date

a program for updating packages

up2date

agetty

alternative Linux getty

util-linux

arch

print machine architecture

util-linux

blockdev

call block device ioctls from the command line

util-linux

cal

displays a calendar

util-linux

chfn

change your finger information

util-linux

chsh

change your login shell

util-linux

colcrt

filter nroff output for CRT previewing

util-linux

col

filter reverse line feeds from input

util-linux

colrm

remove columns from a file

util-linux

column

columnate lists

util-linux

ctrlaltdel

set the function of the Ctrl-Alt-Del combination

util-linux

cytune

Tune Cyclades driver parameters

util-linux

ddate

converts Gregorian dates to Discordian dates

util-linux

dmesg

print or control the kernel ring buffer

util-linux

elvtune

I/O elevator tuner

util-linux

fdformat

Low-level formats a floppy disk

util-linux

fdisk

Partition table manipulator for Linux

util-linux

flock

acquire a file lock and then execute a command with the lock held

util-linux

floppy

format floppy disks

util-linux

getopt

parse command options (enhanced)

util-linux

hexdump

ascii, decimal, hexadecimal, octal dump

util-linux

hwclock

query and set the hardware clock (RTC)

util-linux

ipcrm

remove an XSI message queue, semaphore set, or shared memory segment identifier

util-linux

ipcs

report XSI interprocess communication facilities status

util-linux

isosize

outputs the length of a iso9660 file system

util-linux

kill

bash built-in commands, see bash(1)

util-linux

kill

terminate a process

util-linux

logger

a shell command interface to the syslog(3) system log module

util-linux

login

sign on

util-linux

look

display lines beginning with a given string

util-linux

losetup

set up and control loop devices

util-linux

mcookie

generate magic cookies for xauth

util-linux

mkfs

build a Linux file system

util-linux

mkswap

set up a Linux swap area

util-linux

more

file perusal filter for crt viewing

util-linux

mount

mount a file system

util-linux

namei

follow a pathname until a terminal point is found

util-linux

nologin

politely refuse a login

util-linux

rdev

query/set image root device, RAM disk size, or video mode

util-linux

readprofile

a tool to read kernel profiling information

util-linux

rename

Rename files

util-linux

renice

alter priority of running processes

util-linux

rev

reverse lines of a file

util-linux

script

make typescript of terminal session

util-linux

setfdprm

sets user-provided floppy disk parameters

util-linux

setsid

run a program in a new session

util-linux

setterm

set terminal attributes

util-linux

sfdisk

Partition table manipulator for Linux

util-linux

sln

static ln

util-linux

swapoff

enable/disable devices and files for paging and swapping

util-linux

swapon

enable/disable devices and files for paging and swapping

util-linux

tailf

follow the growth of a log file

util-linux

tunelp

set various parameters for the lp device

util-linux

ul

do underlining

util-linux

umount

unmount file systems

util-linux

vigr

edit the password or group files

util-linux

vipw

edit the password or group files

util-linux

whereis

locate the binary, source, and manual page files for a command

util-linux

write

send a message to another user

util-linux

vconfig

VLAN (802.1q) configuration program

vconfig

cron

daemon to execute scheduled commands (ISC Cron V4.1)

vixie-cron

crond

daemon to execute scheduled commands (ISC Cron V4.1)

vixie-cron

crontab

maintain crontab files for individual users (ISC Cron V4.1)

vixie-cron

ifrename

rename network interfaces based on various static criteria

wireless-tools

iwconfig

configure a wireless network interface

wireless-tools

iwevent

Display Wireless Events generated by drivers and setting changes

wireless-tools

iwgetid

Report ESSID, NWID or AP/Cell Address of wireless network

wireless-tools

iwlist

Get more detailed wireless information from a wireless interface

wireless-tools

iwpriv

configure optionals (private) parameters of a wireless network interface

wireless-tools

iwspy

Get wireless statistics from specific nodes

wireless-tools

x86info

display x86 CPU diagnostics

x86info

ypcat

print values of all keys in a NIS database

yp-tools

ypchfn

change your password in the NIS database

yp-tools

ypchsh

change your password in the NIS database

yp-tools

ypmatch

print the values of one or more keys from a NIS map

yp-tools

yppasswd

change your password in the NIS database

yp-tools

yppoll

return version and master server of a NIS map

yp-tools

ypset

bind ypbind to a particular NIS server

yp-tools

yptest

test NIS configuration

yp-tools

ypwhich

return name of NIS server or map master

yp-tools

yum

Yellowdog Updater Modified

yum

yum

Yellowdog Updater Modified shell

yum


© 2000-2014, William E. Shotts, Jr. Verbatim copying and distribution of this entire article is permitted in any medium, provided this copyright notice is preserved.

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