Commands using command (55)

  • Pipe any command through figlet to make the output more awesome. Example: ls | figlet Show Sample Output


    25
    command | figlet
    isaacs · 2009-05-03 21:20:46 3
  • Test scenario: * Open xterm (or konsole, ...) * Start xeyes with: ( xeyes & ) * Close the xterminal The xeyes process should be still running.


    25
    ( command & )
    wiburg · 2011-01-07 19:06:30 10
  • In the sample output, I pressed ctrl+r and typed the letters las. I can't imagine how much typing this has saved me. Show Sample Output


    15
    ^r in bash begins a reverse-search-history with command completion
    abcde · 2009-02-19 18:17:54 2
  • Don't do this: echo word | command Using a bash "here strings" and "here documents" look leeter than piping echo into the command. Also prevents subshell execution. Word is also expanded as usual.


    12
    command <<< word
    adeverteuil · 2012-02-29 03:14:54 3
  • This little function will smarten 'cd'. If you try to cd into a file (which I guess we all have done), it cd's into the directory of that file instead. I had to use nesten if's, to get cd to still work with 'cd' (to get to $HOME), 'cd -' (to get to last directory), and 'cd foo\ bar'. Show Sample Output


    9
    cd() { if [ -z "$1" ]; then command cd; else if [ -f "$1" ]; then command cd $(dirname "$1"); else command cd "$1"; fi; fi; }
    xeor · 2010-04-23 19:17:43 4

  • 9
    command > >(tee stdout.log) 2> >(tee stderr.log >&2)
    bandie91 · 2011-10-20 15:08:33 1

  • 9
    command systemctl --no-page --no-legend --plain -t service --state=running
    Xk2c · 2016-04-30 10:35:05 1
  • I don't truly enjoy many commands more than this one, which I alias to be ps1.. Cool to be able to see the heirarchy and makes it clearer what need to be killed, and whats really going on. Show Sample Output


    8
    command ps -Hacl -F S -A f
    AskApache · 2009-08-19 07:08:19 1
  • If BREs can be used, this sed version will also get the job done.


    7
    command | sed -n '1,/regex/p'
    putnamhill · 2009-12-22 15:04:38 0
  • Calls sudo tee like all the other lines, but also automatically reloads the file. Optionally you can add command Wq :execute ':W' | :q and command WQ :Wq to make quitting easier


    7
    command W :execute ':silent w !sudo tee % > /dev/null' | :edit!
    unixmonkey26167 · 2011-10-06 20:37:54 1

  • 6
    command !$
    chrisindallas · 2009-02-25 14:00:24 5
  • Same as the cool matrix style command ( http://www.commandlinefu.com/commands/view/3652/matrix-style ), except replacing the printed character with randomness. The command mentioned is much faster and thus more true to the matrix. However, mine can be optimized, but I wasted ... i mean spent enough time on it already Show Sample Output


    6
    check the sample output below, the command was too long :(
    pykler · 2009-09-29 19:30:10 3
  • Run this before you run a command in order to see what the command does as it starts. The -c flag is useful here as the PID is unknown before startup. All config files, libraries, logs, ports, etc used by the command as it starts up, (and shuts down) will be captured at 1s intervals and written to a file. Useful for debugging etc. Show Sample Output


    6
    sudo lsof -rc command >> /tmp/command.txt
    zlemini · 2011-08-03 20:19:53 0
  • The improvement is that you can re-attach to the screen at a later point.


    5
    screen -d -m command &
    unixmonkey10455 · 2010-06-22 18:24:22 0
  • Copies whatever is piped to the pbcopy command to the clipboard. pbpaste ... well pastes whats on the clipboard.


    4
    command | pbcopy && pbpaste
    vaporub · 2009-02-16 07:40:36 0
  • An easy function to get a process tree listing (very detailed) for all the processes of any gived user. This function is also in my http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html Show Sample Output


    4
    psu(){ command ps -Hcl -F S f -u ${1:-$USER}; }
    AskApache · 2009-11-13 06:10:33 1
  • it is generally advised to avoid using which(1) whenever possible. which(1) is usually a csh(1) script, or sometimes a compiled binary. It's output is highly variable from operating system to operating system, so platform independent scripts could become quite complicated with the logic. On HP-UX 10.20, for example, it prints "no bash in /path /path /path ..."; on OpenBSD 4.1, it prints "bash: Command not found."; on Debian (3.1 through 5.0 at least) and SuSE, it prints nothing at all; on Red Hat 5.2, it prints "which: no bash in (/path:/path:...)"; on Red Hat 6.2, it writes the same message, but on standard error instead of standard output; and on Gentoo, it writes something on stderr. And given all these differences, it's still variable based on your shell. This is why POSIX is king. See http://mywiki.wooledge.org/BashFAQ/081 for more ways on avoiding which(1). Show Sample Output


    4
    command -v bash
    atoponce · 2011-09-26 10:17:41 4
  • Useful to add a timestamp to every line printed to stdout. You can use `-Ins` instead of `-Iseconds` if you want more precision. Show Sample Output


    3
    any command | while read line; do echo "[`date -Iseconds`] $line"; done
    ayosec · 2014-02-07 22:27:29 0
  • Check out the usage of 'trap', you may not have seen this one much. This command provides a way to schedule commands at certain times by running them after sleep finishes sleeping. In the example 'sleep 2h' sleeps for 2 hours. What is cool about this command is that it uses the 'trap' builtin bash command to remove the SIGHUP trap that normally exits all processes started by the shell upon logout. The 'trap 1' command then restores the normal SIGHUP behaviour. It also uses the 'nice -n 19' command which causes the sleep process to be run with minimal CPU. Further, it runs all the commands within the 2nd parentheses in the background. This is sweet cuz you can fire off as many of these as you want. Very helpful for shell scripts.


    2
    ( trap '' 1; ( nice -n 19 sleep 2h && command rm -v -rf /garbage/ &>/dev/null && trap 1 ) & )
    AskApache · 2009-10-10 04:43:44 1
  • I've wanted this for a long time, finally just sat down and came up with it. This shows you the sorted output of ps in a pretty format perfect for cron or startup scripts. You can sort by changing the k -vsz to k -pmem for example to sort by memory instead. If you want a function, here's one from my http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html aa_top_ps(){ local T N=${1:-10};T=${2:-vsz}; ps wwo pid,user,group,vsize:8,size:8,sz:6,rss:6,pmem:7,pcpu:7,time:7,wchan,sched=,stat,flags,comm,args k -${T} -A|sed -u "/^ *PID/d;${N}q"; } Show Sample Output


    2
    command ps wwo pid,user,group,vsize:8,size:8,sz:6,rss:6,pmem:7,pcpu:7,time:7,wchan,sched=,stat,flags,comm,args k -vsz -A|sed -u '/^ *PID/d;10q'
    AskApache · 2010-05-18 18:41:38 1
  • Useful when you have only one terminal session e.g. ssh. and want to queue up another command after the currently running has finished(in case if you forget to run that command). Originally used as ; python-updater when running emerge. When I have noticed that a package failed due to that command not run.


    2
    a command is running... <^z> fg; scheduled_command
    denysonique · 2010-07-28 19:25:19 0
  • 5 helpful aliases for using the which utility, specifically for the GNU which (2.16 tested) that is included in coreutils. Which is run first for a command. Same as type builtin minus verbosity alias which='{ command alias; command declare -f; } | command which --read-functions --read-alias' Which (a)lias alias whicha='command alias | command which --read-alias' Which (f)unction alias whichf='command declare -f | command which --read-functions' Which e(x)ecutable file in PATH alias whichx='command which' Which (all) alias, function, builtin, and files in PATH alias whichall='{ command alias; command declare -f; } | command which --read-functions --read-alias -a' # From my .bash_profile http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html Show Sample Output


    2
    alias whichall='{ command alias; command declare -f; } | command which --read-functions --read-alias -a'
    AskApache · 2010-11-18 03:32:04 5
  • Uses the shell builtin `declare` with the '-f' flag to output only functions to grep out only the function names. You can use it as an alias or function like so: alias shfunctions="builtin declare -f | command grep --color=never -E '^[a-zA-Z_]+\ \(\)'" shfunctions () { builtin declare -f | command grep --color=never -E '^[a-zA-Z_]+\ \(\)'; } Show Sample Output


    2
    builtin declare -f | command grep --color=never -E '^[a-zA-Z_]+\ \(\)'
    sciro · 2018-07-23 05:24:04 0
  • An apt-get wrapper function which will run the command via sudo, but will run it normally if you're only downloading source files. This was a bit of an excuse to show off the framework of cmd && echo true || echo false ...but as you can see, you must be careful about what is in the "true" block to make sure it executes without error, otherwise the "false" block will be executed. To allow the apt-get return code to pass through, you need to use a more normal if/else block: apt-get () { if [ "$1" = source ]; then command apt-get "$@"; else sudo apt-get "$@"; fi }


    1
    apt-get () { [ "$1" = source ] && (command apt-get "$@";true) || sudo apt-get "$@" }
    mulad · 2009-02-19 04:17:24 1
  • Slightly simpler version of previous sed command that does the same thing. In this case, the output will stop at the command, and the entire command will be terminated as well, instead of proceeding through the whole file.


    1
    command | sed '/regex/q'
    taliver · 2009-12-29 14:52:41 0
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list block level layout

foo <--> german translation with dict.leo.org
Translate strings from non-german to german (and vice versa) using LEO. Put it in your ~/.bashrc. Usage: $ leo words   To use another language other than english, use an option: $ leo -xx words Valid language options: ch - chinese en - english es - spanish fr - french it - italian pl - polish pt - portuguese ru - russian The other language will always be german!

Diff XML files
Diffs two xml files by formatting them first using xmllint and then invoking diff. Usage: diffxml XMLFile1 XMLFile2

Don't like the cut command? Tired of typing awk '{print $xxx}', try this

limit the cdrom driver to a specified speed
this command limit the speed to 8 until next eject of your cdrom disc , can be usefulll when you don't want to listen the sound of your cdrom driver .

create random string from /dev/urandom (or another length)

Multi-line grep
Using perl you can search for patterns spanning several lines, a thing that grep can't do. Append the list of files to above command or pipe a file through it, just as with regular grep. If you add the 's' modifier to the regex, the dot '.' also matches line endings, useful if you don't known how many lines you need are between parts of your pattern. Change '*' to '*?' to make it greedy, that is match only as few characters as possible. See also http://www.commandlinefu.com/commands/view/1764/display-a-block-of-text-with-awk to do a similar thing with awk. Edit: The undef has to be put in a begin-block, or a match in the first line would not be found.

Blue Matrix
Same as original, but works in bash

show framebuffer console modes to use in grub vga option
look at /boot/grub/menu.lst for somethig like: ## additional options to use with the default boot option, but not with the ## alternatives ## e.g. defoptions=vga=791 resume=/dev/hda5 ## defoptions=vga=795 # defoptions=vga=873 ## altoption boot targets option ## multiple altoptions lines are allowed ## e.g. altoptions=(extra menu suffix) extra boot options ## altoptions=(recovery) single # altoptions=(verbose mode) vga=775 debug # altoptions=(console mode) vga=ask # altoptions=(graphic mode) quiet splash # altoptions=(recovery mode) single vga=(decimal value) is framebuffer mode

format txt as table


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