Commands using alias (233)

  • If you're running a command with a lot of output, this serves as a simple progress indicator. This avoids the need to use `/dev/null` for silencing. It works for any command that outputs lines, updates live (`fflush` avoids buffering), and is simple to understand. Show Sample Output


    7
    alias ...="awk '{fflush(); printf \".\"}' && echo \"\""
    lgarron · 2014-02-22 22:20:22 6
  • This is a simple command, but extremely useful. It's a quick way to search the file names in the current directory for a substring. Normally people use "ls *term*" but that requires the stars and is not case insensitive. Color (for both ls and grep) is an added bonus.


    6
    alias lg='ls --color=always | grep --color=always -i'
    kFiddle · 2009-04-11 23:15:12 3
  • It finds a SNMP OID too :-( Show Sample Output


    5
    alias ip4grep "grep -E '([0-9]{1,3}\.){3}[0-9]{1,3}'"
    azumakuniyuki · 2009-02-09 15:08:16 3
  • ifconfig can't properly display interface's name longer 9 symbols,also it can't show IPs added thru ip command, so 'ip' should be used instead. This alias properly shows long names, bond interfaces and all interface aliases. loopback interface is ignored, since its IP is obvious Show Sample Output


    5
    alias ips='ip a | awk '\''/inet /&&!/ lo/{print $NF,$2}'\'' | column -t'
    zolden · 2010-03-06 20:33:04 0
  • Place this in your .bashrc (or run it once) to set the `tasks` alias. Next time you enter `tasks` into a terminal, it will give you a list of all TODO and FIXME comments in the current directory and child directories, giving you a quick overview of what you still have to do!


    5
    alias tasks='grep --exclude-dir=.git -rEI "TODO|FIXME" . 2>/dev/null'
    joepie91 · 2013-10-17 16:40:10 1
  • Leave out pygmentize or `pip install pygments` first. Show Sample Output


    5
    alias pp='python -mjson.tool|pygmentize -l js'
    wires · 2014-05-22 10:29:44 3

  • 4
    alias lrt='ls -lart'
    lhb · 2009-02-16 11:19:29 2
  • Turn off almost all of dig's output except for what you'd see in a zone file. This can also be put into ~/.digrc. Show Sample Output


    4
    alias ds='dig +noauthority +noadditional +noqr +nostats +noidentify +nocmd +noquestion +nocomments'
    SaintAardvark · 2009-02-19 17:32:56 0
  • tired of switching to the console to check if some command has finished yet? if notify-send does not work on your box try this one... e.g. rsync -av -e /usr/bin/lsh $HOME slowconnection.bar:/mnt/backup ; z (now fire up X, do something useful, get notified if this stuff has finished).


    4
    alias z='zenity --info --text="You will not believe it, but your command has finished now! :-)" --display :0.0'
    bubo · 2009-08-03 16:38:29 3
  • In Bash, when defining an alias, one usually loses the completion related to the function used in that alias (that completion is usually defined in /etc/bash_completion using the complete builtin). It's easy to reuse the work done for that completion in order to have smart completion for our alias. That's what is done by this command line (that's only an example but it may be very easy to reuse). Note 1 : You can use given command line in a loop "for old in apt-get apt-cache" if you want to define aliases like that for many commands. Note 2 : You can put the output of the command directly in your .bashrc file (after the ". /etc/bash_completion") to always have the alias and its completion Show Sample Output


    4
    old='apt-get'; new="su-${old}"; command="sudo ${old}"; alias "${new}=${command}"; $( complete | sed -n "s/${old}$/${new}/p" ); alias ${new}; complete -p ${new}
    Josay · 2009-08-10 00:15:05 0
  • When debugging an ssh connection either to optimize your settings ie compression, ciphers, or more commonly for debugging an issue connecting, this alias comes in real handy as it's not easy to remember the '-o LogLevel=DEBUG3' argument, which adds a boost of debugging info not available with -vvv alone. Especially useful are the FD info, and the setup negotiation to create a cleaner, faster connection. Show Sample Output


    4
    alias sshv='ssh -vvv -o LogLevel=DEBUG3'
    AskApache · 2010-10-30 11:23:52 0
  • An easy alias for opening a manpage, nicely HTML formatted, in your set internet browser. If you get a "command exited with status 3" error you need to install groff.


    4
    alias bman='man --html=x-www-browser'
    lordtoran · 2016-10-23 17:59:47 4
  • I didn't come up with this myself, but I always add this to my .bash_aliases file. It's essentially the same idea as running "sudo !!" except it's much easier to type. (You can't just alias "sudo !!", it doesn't really work for reasons I don't understand.) "fc" is a shell built-in for editing and re-running previous commands. The -l flag tells it to display the line rather than edit it, and the -n command tells it to omit the line number. -1 tells it to print the previous line. For more detail: help fc


    4
    alias please='sudo $(fc -ln -1)'
    suspenderguy · 2018-06-13 20:20:19 2

  • 3
    alias counts=sort | uniq -c | sort -nr
    porges · 2009-02-05 08:24:02 1
  • E.g. Useful for hiding spoilers in reviews, etc. Show Sample Output


    3
    alias rot13='perl -pe "y/A-Za-z/N-ZA-Mn-za-m/;"'
    abcde · 2009-02-06 14:22:43 2
  • Use the aliased command 'nsl'


    3
    alias nsl 'netstat -f inet | grep -v CLOSE_WAIT | cut -c-6,21-94 | tail +2'
    mnikhil · 2009-02-07 18:54:12 1
  • The pstack command prints a stack trace of running processes without needing to attach a debugger, but what about core files? The answer, of course, is to use this command. Usage: gdbbt program corefile


    3
    alias gdbbt="gdb -q -n -ex bt -batch"
    TeacherTiger · 2009-11-10 22:56:59 83
  • This uses mpg123 to convert the files to wav before burning, but you can use mplayer or mencoder or ffmpeg or lame with the --decode option, or whatever you like.


    3
    alias burnaudiocd='mkdir ./temp && for i in *.[Mm][Pp]3;do mpg123 -w "./temp/${i%%.*}.wav" "$i";done;cdrecord -pad ./temp/* && rm -r ./temp'
    eightmillion · 2009-11-21 19:57:18 0
  • I use this command (PS1) to show a list bash prompt's special characters. I tested it against A flavor of Red Hat Linux and Mac OS X Show Sample Output


    3
    alias PS1="man bash | sed -n '/ASCII bell/,/end a sequence/p'"
    haivu · 2010-01-15 23:39:28 0
  • I use this alias in my bashrc. The --vi-keys option makes info use vi-like and less-like key bindings.


    3
    alias info='info --vi-keys'
    eightmillion · 2010-02-16 16:35:17 0
  • if you dont want to alias also then you can do killall rapidly_spawning_process ; !! ; !! ; !!


    3
    alias a=" killall rapidly_spawning_process"; a; a; a;
    raj77_in · 2010-05-20 02:33:28 0
  • Once you get into advanced/optimized scripts, functions, or cli usage, you will use the sort command alot. The options are difficult to master/memorize however, and when you use sort commands as much as I do (some examples below), it's useful to have the help available with a simple alias. I love this alias as I never seem to remember all the options for sort, and I use sort like crazy (much better than uniq for example). # Sorts by file permissions find . -maxdepth 1 -printf '%.5m %10M %p\n' | sort -k1 -r -g -bS 20% 00761 drwxrw---x ./tmp 00755 drwxr-xr-x . 00701 drwx-----x ./askapache-m 00644 -rw-r--r-- ./.htaccess # Shows uniq history fast history 1000 | sed 's/^[0-9 ]*//' | sort -fubdS 50% exec bash -lxv export TERM=putty-256color Taken from my http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html Show Sample Output


    3
    alias sorth='sort --help|sed -n "/^ *-[^-]/s/^ *\(-[^ ]* -[^ ]*\) *\(.*\)/\1:\2/p"|column -ts":"'
    AskApache · 2010-06-10 21:30:31 0
  • USAGE: $ sudor your command This command uses a dirty hack with history, so be sure you not turned it off. WARNING! This command behavior differ from other commands. It more like text macro, so you shouldn't use it in subshells, non-interactive sessions, other functions/aliases and so on. You shouldn't pipe into sudor (any string that prefixes sudor will be removed), but if you really want, use this commands: proceed_sudo () { sudor_command="`HISTTIMEFORMAT=\"\" history 1 | sed -r -e 's/^.*?sudor//' -e 's/\"/\\\"/g'`" ; pre_sudor_command="`history 1 | cut -d ' ' -f 5- | sed -r -e 's/sudor.*$//' -e 's/\"/\\\"/g'`"; if [ -n "${pre_sudor_command/ */}" ] ; then eval "${pre_sudor_command%| *}" | sudo sh -c "$sudor_command"; else sudo sh -c "$sudor_command" ;fi ;}; alias sudor="proceed_sudo # "


    3
    proceed_sudo () { sudor_command="`HISTTIMEFORMAT=\"\" history 1 | sed -r -e 's/^.*?sudor//' -e 's/\"/\\\"/g'`" ; sudo sh -c "$sudor_command"; }; alias sudor="proceed_sudo # "
    mechmind · 2010-06-29 14:56:29 0
  • If a tmux session is already running attach it, otherwise create a new one. Useful if you often forget about running tmuxes (or just don't care)


    3
    alias ltmux="if tmux has; then tmux attach; else tmux new; fi"
    tensorpudding · 2010-07-19 01:27:47 0
  • Bash alias for easy irssi within screen, attempts to attach to existing irssi session, if one exists, otherwise creates one - Including wipe for when system reboots and leaves "dead" session.


    3
    alias irssi="screen -wipe; screen -A -U -x -R -S irssi irssi"
    djsmiley2k · 2010-12-15 09:10:53 0
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Grep for word in directory (recursive)
greps for search word in directory and below (defaults to cd). -i case insensitive -n shows line number -H shows file name

Retrieve the size of a file on a server
Downloads the entire file, but http servers don't always provide the optional 'Content-Length:' header, and ftp/gopher/dict/etc servers don't provide a filesize header at all.

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Flush and then immediately start watching a file
This is useful for keeping an eye on an error log while developing. The !^ pulls the first arg from the previous command (which needs to be run in a sub-shell for this shortcut to work).

Does a traceroute. Lookup and display the network or AS names and AS numbers.
From the man page. lft ? display the route packets take to a network host/socket using one of several layer-4 protocols and methods; optionally show heuristic network information in transitu -A Enable lookup and display of of AS (autonomous system) numbers (e.g., [1]). This option queries one of several whois servers (see options 'C' and 'r') in order to ascertain the origin ASN of the IP address in question. By default, LFT uses the pWhoIs service whose ASN data tends to be more accurate and more timely than using the RADB as it is derived from the Internet's global routing table. -N Enable lookup and display of network or AS names (e.g., [GNTY-NETBLK-4]). This option queries Prefix WhoIs, RIPE NCC, or the RADB (as requested). In the case of Prefix WhoIs or RADB, the network name is displayed. In the case of RIPE NCC, the AS name is displayed.

Ease your directory exploration
Usage : tt [OCCURRENCE] tt will display a tree from your actual path tt .svn will display only line containing .svn

Switch all connected PulseAudio bluetooth devices to A2DP profile
Tries to switch all audio devices to the A2DP profile for optimal sound quality. Useful for bluetooth speakers and headphones that always power up in HSP/HFP mode. Note however that this command is only a shorthand for the GUI, so it cannot fix stubborn BT controllers that leave your device stuck in HSP mode until a manual re-coupling.

Start another X session in a window
You might have Xnest (older) rather than Xephyr. You can experiment with other desktops eg: startx /usr/bin/start-kde -- /usr/bin/Xephyr :2 You can start X on a remote machine (although I'd recommend vnc for anything slower than a LAN): startx /usr/bin/ssh -X gnome-session -- /usr/bin/Xephyr :2 Or just start another X session locally talking to the remote backend:

infile search and replace on N files (including backup of the files)
the addition of ".bk" to the regular "pie" idiom makes perl create a backup of every file with the extension ".bk", in case it b0rks something and you want it back

Propagate a directory to another and create symlink to content
Lndir create from source directory to destination directory a full symlink tree of all contents of source directory, really useful for propagate changes from a directory to another.


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