Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] a command (sed) abbreviate command (ex) abbreviation of words, Emacs accept command access command access mode, changing for files account command (ftp) acipd daemon aclocal command aconnect command acpi command acpi_available command add command cvs svn addresses command addresses for ex commands addresses for sed commands ADF (automatic document feeder), controlling scanners admin command (CVS) administration Advanced Configuration and Power Interface (ACPI) Advanced Package Tool agents, ssh agetty command alias command lftp aliases bash and ksh commands for commands printing current sendmail aliases rebuilding mail aliases database alnum character class alpha character class ALSA (Advanced Linux Sound Architecture) mixer playing MIDI files playing sound files with aplay raw MIDI files, reading/writing recording MIDI files recording sound alsactl command alsamixer command Alt key, used for Emacs Meta Alt-F1 through F12 Alt-F7 amidi command anacron command and function (gawk) annotate command (CVS) anon command (lftp) ANSI/VT100 emulation Apache web server user authentication files, updating aplay command aplaymidi command APM (Advanced Power Management) GRUB displayapm command apm command apmd command append command (ex) append command, ftp apropos command apt command apt-cache command (Debian) apt-cdrom command (Debian) apt-config command (Debian) apt-extracttemplates command (Debian) apt-ftparchive command (Debian) apt-get command (Debian) 2nd apt-sortpkgs command (Debian) aptitude command (Debian) ar command Arch (source code management system) arch command archives copying with cpio creating and restoring (tar) generating indexes for maintenance (ar) arecord command args command (ex) arguments (command), reading from standard input arithmetic (arbitrary-precision), with bc arithmetic expressions, bash and ksh 2nd arithmetic operators bc program expr command ARP (Address Resolution Protocol) arp command ifconfig and arrays assigning in awk in operator (awk) Korn shell RAID device as command ascii command (ftp) asort function (gawk) asorti function (gawk) ASs (autonomous systems) assembly language, generation of object files assignment operators awk bash and ksh shells bc program associative arrays 2nd at (@) command (ex) at command batch command lftp at.allow file at.deny file atan2 function (awk) atd command atomic commits (Subversion) atrm command attributes, terminal, setting audio media commands audiosend command aumix command authentication keys for ssh author command (svnlook) autoconf command autoheader command autoload command (ksh) automake command automatic document feeder (ADF), controlling scanners with autoreconf command autoscan command autoupdate command awk programming language command-line syntax gawk options standard options functions and commands group listing listed by name implementation limits operators pattern-matching metacharacters patterns and procedures examples searching with regular expressions source code, URLs for variable and array assignment variables, built-in |