LinuxCommand

Learning the shell

Writing shell scripts

Script library

SuperMan pages

Who, What, Where, Why

SuperMan Pages: c

Command Description Package
c2ph

Dump C structures as generated from cc -g -S stabs

perl

cadaver

A command-line WebDAV client for Unix

cadaver

cage

Escher's impossible cage, for xscreensaver

xscreensaver

callback

call a user back, presenting a login prompt

mgetty

cal

displays a calendar

util-linux

capiinfo

Show supported features of all installed CAPI2.0 controllers

isdn4k-utils

capiplugin

Plugin for pppd (Point-to-Point Protocol daemon)

isdn4k-utils

captoinfo

convert a termcap description into a terminfo description

ncurses

card

print reference card of program options

a2ps

cardctl

PCMCIA card control utility

kernel-pcmcia-cs

cardmgr

PCMCIA device manager

kernel-pcmcia-cs

ca

sample minimal CA application

openssl

cat

concatenate files and print on the standard output

textutils

catod

To convert the text format of a dictionary to binary format

cWnn-common

catof

To convert the text format of grammatical rules into binary format

cWnn-common

ccurve

self-similar linear fractals

xscreensaver

cdda2wav

a sampling utility that dumps CD audio data into wav sound files

cdda2wav

cdecl

Compose C and C++ type declarations

cdecl

cdicsort

To sort the text format dictionary

cWnn-common

cdlabelgen

CD jewel case inserts creator. Generates frontcards and traycards for CD cases

cdlabelgen

cdparanoia

an audio CD reading utility which includes extra data verification features

cdparanoia

cdrdao

writes audio CD-Rs in disc-at-once mode

cdrdao

cdrecord

record audio or data Compact Discs from a master

cdrecord

cd

bash built-in commands, see bash(1)

bash

cdtoa

To convert the binary format of a dictionary back to text format

cWnn-common

cfgmaker

Creates mrtg.cfg files (for mrtg-2.9.17)

mrtg

chacl

change the access control list of a file or directory

acl

chage

change user password expiry information

shadow-utils

chat

Automated conversational script with a modem

ppp

chattr

change file attributes on a Linux second extended file system

e2fsprogs

checkpc

check out the /etc/printcap database

LPRng

chfn

change your finger information

util-linux

chgrp

change group ownership

fileutils

chkconfig

updates and queries runlevel information for system services

chkconfig

chkfontpath

simple interface for adding, removing, and listing directories in the X font server's path

chkfontpath

chmod

change file access permissions

fileutils

chown

change file owner and group

fileutils

chpasswd

update password file in batch

shadow-utils

chroot

run command or interactive shell with special root directory

sh-utils

chsh

change your login shell

util-linux

chvt

change foreground virtual terminal

kbd

ci

check in RCS revisions

rcs

ciphers

SSL cipher display and cipher list tool

openssl

circuit

animates a number of 3D electronic components

xscreensaver

cjpeg

compress an image file to a JPEG file

libjpeg

ckpasswd

nnrpd password authenticator

inn

ckraid

obsolete

raidtools

cksum

checksum and count the bytes in a file

textutils

clear

clear the terminal screen

ncurses

clockdiff

measure clock difference between hosts

iputils

cmail

an email chess helper

xboard

cmp

compare two files

diffutils

cmuwmtopbm

convert a CMU window manager bitmap into a portable bitmap

netpbm-progs

cnfsheadconf

set CNFS header

inn

cnfsstat

show usage of cycbuffs

inn

co

check out RCS revisions

rcs

colcrt

filter nroff output for CRT previewing

util-linux

colrm

remove columns from a file

util-linux

col

filter reverse line feeds from input

util-linux

column

columnate lists

util-linux

combinediff

create a cumulative patch from two incremental patches

patchutils

command

bash built-in commands, see bash(1)

bash

comm

compare two sorted files line by line

textutils

comp

compose a message

nmh

compass

draws a spinning compass

xscreensaver

compgen

bash built-in commands, see bash(1)

bash

complete

bash built-in commands, see bash(1)

bash

composite

composite images together

ImageMagick

compress

compress and expand data (version 4.1)

ncompress

comsat

biff server

comsat

conflict

search for alias/password conflicts

nmh

conjure

process a Magick Scripting Language (MSL) script

ImageMagick

consolehelper

A wrapper that helps console users run system programs

usermode

consoletype

print type of the console connected to standard input

initscripts

continue

bash built-in commands, see bash(1)

bash

contrib

Contribution Guidelines for MRTG

mrtg

controlchan

channel-fed control message handler

inn

convdate

convert time/date strings and numbers

inn

convert

convert an image or sequence of images

ImageMagick

convertquota

convert quota from old file format to new one

quota

coral

simulates coral growth, albeit somewhat slowly

xscreensaver

cp

copy files and directories

fileutils

cpio

copy files to and from archives

cpio

cpp

The C Preprocessor

cpp

cproto

generate C function prototypes and convert function definitions

cproto

createdb

create a new PostgreSQL database

postgresql

createlang

define a new PostgreSQL procedural language

postgresql

createuser

define a new PostgreSQL user account

postgresql

critical

Draw a system showing self-organizing criticality

xscreensaver

crl2pkcs7

Create a PKCS#7 structure from a CRL and certificates

openssl

crl

CRL utility

openssl

cron

daemon to execute scheduled commands (Vixie Cron)

vixie-cron

crontab

maintain crontab files for individual users (V3)

vixie-cron

crystal

kaleidescope

xscreensaver

cserver

To start the Chinese server

cWnn

csplit

split a file into sections determined by context lines

textutils

ctags

generate tag file for Emacs, vi

ctags

ctags

Generate tag files for source code

ctags

ctlinnd

control the InterNetNews daemon

inn

ctrlaltdel

set the function of the Ctrl-Alt-Del combination

util-linux

cu

Call up another system

uucp

cubenetic

cubist 3D undulating blob

xscreensaver

cupsaddsmb

export printers to samba for windows clients

cups

cupsd

common unix printing system daemon

cups

curl

transfer a URL

curl

cut

remove sections from each line of files

textutils

cuum

To start the front-end processor

cWnn-common

cvsbug

send problem report (PR) about CVS to a central support site

cvs

cvs

Concurrent Versions System

cvs

cvtbatch

convert Usenet batch file to INN format

inn

cwddel

To delete characters/words from the binary format dictionary

cWnn-common

cwdreg

To register characters/words into the binary format dictionary

cWnn-common

cwnnkill

To terminate the cserver

cWnn-common

cwnnstat

To show the current status of cserver

cWnn-common

cwnntouch

To rewrite the header of the dictionary

cWnn-common

cxpm

Check an XPM (X PixMap) file

XFree86-devel

cynosure

gentle overlapping squares screen saver

xscreensaver

cytune

Tune Cyclades driver parameters

util-linux