Commands tagged function (121)


  • -4
    function mkdcd () { mkdir "$1" && cd "$1" }
    shinokada · 2013-08-31 12:48:13 0
  • Put this into your ~/.bashrc to create a database for mysql with a user and password. Usage: createdb `database` `datbase-user` `database-password`.


    0
    function createdb () { mysqladmin -u root -p create $1 && mysql -u root -p -e "GRANT ALL ON $1.* TO '$2'@'localhost' IDENTIFIED BY '$3';" ; }
    thanosme · 2013-08-18 00:34:37 0
  • Puts a splash of color in your access logs. IP addresses are gray, 200 and 304 are green, all 4xx errors are red. Works well with e.g. "colorize access_log | less -R" if you want to see your colors while paging. Use as inspiration for other things you might be tailing, like syslog or vmstat Usage: tail -f access.log | colorize


    1
    function colorize() { c="--line-buffered --color=yes"; GREP_COLORS="mt=01;34" egrep $c '(^| 200 | 304 )' "${@}" | GREP_COLORS="mt=02;31" egrep $c '(^|"(GET|POST) .*[^0-9] 4[0-1][0-9] )' | GREP_COLORS="ms=02;37" egrep $c '(^|^[0-9\.]+) ';}
    mogsie · 2013-08-14 21:05:34 0
  • use the shell default positional parameter syntax ${X:-default} in lieu of testing.


    0
    open() { explorer /e, $(cygpath -wap "${1:-$PWD}"); }
    applemcg · 2013-08-08 14:49:15 0
  • Support several arguments. Show Sample Output


    0
    google() { gg="https://www.google.com/search?q=";q="";if [[ $1 ]]; then for arg in "$@" ; do q="$q+$arg"; done ; if [[ -f /usr/bin/chromium ]]; then chromium "$gg"$q; else firefox -new-tab "$gg"$q; fi else echo 'Usage: google "[seach term]"'; fi }
    LenuX · 2013-08-08 14:34:09 0
  • Usage: google "[search string]" Example: google "something im searching for" This will launch firefox and execute a google search in a new tab with the provided search string. You must provide the path to your Firefox binary if using cygwin to $ff or create an alias like follows: alias firefox='/cygdrive/c/Program Files (x86)/Mozilla Firefox/firefox.exe' Most Linux flavors with Firefox installed will use just ff="firefox" and even OSX.


    3
    google() { gg="https://www.google.com/search?q="; ff="firefox"; if [[ $1 ]]; then "$ff" -new-tab "$gg"$(echo ${1//[^a-zA-Z0-9]/+}); else echo 'Usage: google "[seach term]"'; fi }
    lowjax · 2013-08-01 22:21:53 5
  • Quickly remove the conflicting line (key) from current users known_hosts file when there is an SSH host conflict. Very nice when you get tired of writing out full commands. Ideally you would place this into your .bash_profile Usage: rhost [n] Example: rhost 33 (removes line 33 from ~/.ssh/known_hosts) Function assumes the $HOME exists, you could alternatively use "~/.ssh/known_hosts" Mac OSX likes a space for sed -i "$1" d


    -1
    rhost() { if [[ $1 =~ ^[0-9]+$ ]]; then sed -i "$1"d ${HOME}/.ssh/known_hosts; else echo "rhost [n]"; fi }
    lowjax · 2013-08-01 21:10:34 2
  • This alternative either opens the current working directory by just issuing the open function in the commandline. Or you can specify what directory you would like to open. Example: open /cygdrive/c/Windows Usage: open [path] When no option is specified it will open the current working directory


    1
    open(){ if [[ -n "$1" ]];then explorer /e, $(cygpath -mal "$PWD/$1");else explorer /e, $(cygpath -mal "$PWD");fi }
    lowjax · 2013-07-31 01:15:14 2
  • POSIX compliant arithmetic evaluation. = 10*2+3 Show Sample Output


    3
    =() { echo $(($*)); }
    xlz · 2013-05-03 04:27:07 1
  • Is used like this: mkalias rmcache "rm -rfv app/cache/*"


    1
    mkalias () { echo "alias $1=\"$2\"" >> ~\.bash_aliases }
    xr09 · 2013-01-14 13:56:35 0

  • 1
    function map() { [ -n "$1" ] && alias $1="cd `pwd`" || alias | grep "'cd "; }
    b1067606 · 2013-01-11 13:32:26 0
  • typeset command gives to stdout all the functions defined in a bash session, -f and -F switches are for: all functions names with body (-f) and all functions names only (-F). Show Sample Output


    2
    typeset -f
    kLeZ · 2012-09-17 13:48:39 0
  • Appends the input file with the date format YYYY-MM-DD.bak. Also runs silently if you remove the -v on the cp at the end of the function.


    1
    buf () { oldname=$1; if [ "$oldname" != "" ]; then datepart="$(date +%Y-%m-%d).bak"; firstpart=`echo $oldname | cut -d "." -f 1`; newname=`echo $oldname | sed s/$firstpart/$firstpart.$datepart/`; cp -iv ${oldname} ${newname}; fi }
    juliushibert · 2012-08-15 08:31:44 0
  • It gives a 'xcd' command for changing directory to one of CWDs of other ZSH processes (typically running in a terminal emulator). Useful for single-windowed terminal emulators like XTerm or Rxvt which don't have ability to pass CWD of one shell to another. Show Sample Output


    0
    function _xterm_cwds() { for pid in $(pidof -- -zsh) $(pidof zsh); do reply+=$(readlink /proc/$pid/cwd) done }; function xcd() { cd $1 }; compctl -K _xterm_cwds xcd
    aartur · 2012-07-12 19:59:46 1
  • Group membership in OS X is a mish-mash of standards that end up meaning there's almost a half-dozen of ways to belong to a group, what with group inheritance and automatic assignment. This means there's no easy command to find out all groups a user belongs to. The only sensible way then is to list all users and then query each user for membership. NOTE: This is a function. Once input you can execute it by calling with a groupname. Show Sample Output


    -1
    members () { dscl . -list /Users | while read user; do printf "$user "; dsmemberutil checkmembership -U "$user" -G "$*"; done | grep "is a member" | cut -d " " -f 1; };
    eduo · 2012-05-20 11:34:33 0
  • Ever done a find to get content and been messed up by .git, .svn, .hg or the like spamming your results? Did you really want to grep over every copy of the file that existed in your git history? Replace: grep -r PATTERN . with: grep PATTERN -- $(have_here) or if you really have too many files to put in one argv: have_here | xargs grep PATTERN --


    0
    function have_here { find "${@:-.}" -type d \( -name .git -o -name .svn -o -name .bzr -o -name CVS -o -name .hg -o -name __pycache__ \) -prune -o -type f -print; }
    syscomet · 2012-05-20 05:31:26 0
  • regenerateCSR original.crt new.key new.csr Show Sample Output


    0
    regenerateCSR () { openssl genrsa -out $2 2048; openssl x509 -x509toreq -in $1 -out $3 -signkey $2; }
    mrnetops · 2012-02-17 02:45:26 0
  • # put this in your .bashrc mkgo (){ mkdir $1 && cd $1 } Show Sample Output


    -11
    mkgo newdir
    awoods · 2011-12-11 07:31:35 0
  • This is an "argument calculator" funktion. The precision is set to 4 and you can use dot (.) or comma (,) as decimal mark (which is great for german users with a comma on the numpad).


    -1
    calc() { echo "scale=4; ${*//,/.}" | bc -l; }
    fpunktk · 2011-10-24 19:58:20 0
  • This opens a python command line. You can use math and random and float-division is enabled (without appending .0 to integers). I just don't know how to specify a standard precision.


    1
    python -ic "from __future__ import division; from math import *; from random import *"
    fpunktk · 2011-10-24 19:47:27 1
  • use python as calculator, press ctrl+d to exit reminder: when doing factions add atleast one decimal number like so 22.0/7 or 22/7.0 Show Sample Output


    0
    alias calc='python -ic "from math import *; from random import *"'
    Bonster · 2011-10-24 08:15:41 0
  • This function uses xmllint to evaluate xpaths. Usage: xpath /some/xpath XMLfile Show Sample Output


    0
    xpath () { xmllint --format --shell "$2" <<< "cat $1" | sed '/^\/ >/d' }
    sharfah · 2011-10-05 07:45:16 0
  • This works even if there are spaces in any word in the command line. Show Sample Output


    3
    quietly() { "$@" > /dev/null 2>&1; }
    wipu · 2011-10-04 06:45:42 1
  • Create a secure tunnelled connection for access to a remote MySQL database. For example, connect with MySQL Workbench to root@127.0.0.1:13306. Show Sample Output


    -1
    sshmysql() { ssh -L 13306:127.0.0.1:3306 -N $* & }
    peterRepeater · 2011-09-01 10:21:55 1
  • Evoke from the command like as: timeDNS commandlinefu.com . This isn't too terribly practical, but it is a good code example of using subshells to run the queries in parallel and the use of an "anonymous function" (a/k/a "inline group") to group i/o. . I'm assuming you have already defined your local DNS cache as ${local_DNS}, (here, it's 192.168.0.1). . You do need to install `moreutils` to get `sponge`. . If you're willing to wait, a slower version w/o sponge, (and w/o sorting), is this: . DNS () { for x in "192.168.0.1" "208.67.222.222" "208.67.220.220" "198.153.192.1" "198.153.194.1" "156.154.70.1" "156.154.71.1" "8.8.8.8" "8.8.4.4"; do (echo -n "$x "; dig @"$x" "$*"|grep Query) ; done ; } Show Sample Output


    1
    timeDNS () { { for x in "${local_DNS}" "208.67.222.222" "208.67.220.220" "198.153.192.1" "198.153.194.1" "156.154.70.1" "156.154.71.1" "8.8.8.8" "8.8.4.4"; do ({ echo -n "$x "; dig @"$x" "$*"|grep Query ; }|sponge &) done ; } | sort -n -k5 ; }
    unixmonkey365 · 2011-08-18 01:11:53 1
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