gh or "grep history" - define a function gh combining history and grep to save typing

function gh () { history | grep $* ; } # gh or "grep history"
By defining a function "gh" as shown here, it saves me typing "history | grep" every time I need to search my shell history because now I only have to type "gh". A nifty time saver :-) You can also add the "gh" function definition to your .bashrc so it is defined each time you login. (updated 2015_01_29: changed from hg to gh to avoid clash with that other hg command. mnemonic: gh = grep history)
Sample Output
$ gh nut
 1661  sort -nut. -k 1,1 -k 2,2 -k 3,3 -k 4,4
 1737  # sort -nut. -k 1,1 -k 2,2 -k 3,3 -k 4,4
 1891  sort -nut. -k 1,1 -k 2,2 -k 3,3 -k 4,4 < IP_addresses > IP_addresses_sorted

4
By: mpb
2014-04-02 15:17:31

These Might Interest You

  • hgrep() { if [[ ${#} -eq 0 ]] then printf "usage:\nhgrep [--nonum | -N | -n | --all-nonum | -an | -na] STRING\n" return 1 fi while [[ ${#} -gt 0 ]] do case ${1} in --nonum | -N | -n | --all-nonum | -an | -na) builtin history | sed 's/^[[:blank:]]\+[[:digit:]]\{1,5\}[[:blank:]]\{2\}//' | grep -iE "(${*:2})" break ;; *) builtin history | grep -iE "(${*})" break ;; esac done } 'hgrep -n' helps in using full grep support, e.g. search for _beginning_ of specific commands, see example output Show Sample Output


    -1
    hgrep() { ... } longer then 255 characters, see below
    Xk2c · 2014-04-02 16:40:36 2
  • I copied this (let's be honest) somewhere on internet and I just made it as a function ready to be used as alias. It shows the 10 most used commands from history. This seems to be just another "most used commands from history", but hey.. this is a function!!! :D Show Sample Output


    1
    mosth() { history | awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | grep -v "./" | column -c3 -s " " -t | sort -nr | nl | head -n10; }
    nnsense · 2015-05-11 17:41:55 3
  • typing history it's a long way but typing only h it's my way it works in whatever distro or OSes or shells that you use, you know, only for easyness :) Show Sample Output


    -8
    alias h='history'
    ximo88 · 2009-04-28 11:20:03 0
  • Place this in your .bash_profile and you can use it two different ways. If you issue 'h' on its own, then it acts like the history command. If you issue: h cd Then it will display all the history with the word 'cd'


    7
    h() { if [ -z "$1" ]; then history; else history | grep "$@"; fi; }
    haivu · 2009-10-13 21:49:37 4

What Others Think

hg is the name of the mercurial cvs command, so I think it's not a good name choice for every body. also, you can make an alias for this like : alias hig="history|grep " # the space before the la double quote is important.
ayoli · 220 weeks and 1 day ago
I don't use the "mecurial cvs command" so it does not affect me. If you wanted to define a differently named function that's OK too. function moo () { history | grep $* ; } # define a function combining history and grep to save typing :-)
mpb · 220 weeks and 1 day ago
I just use Ctrl-r / Ctrl-s to search commands history in bash/zsh
sergeylukin · 219 weeks and 4 days ago
@sergeylukin Yes, I do ctrl-r. However, I also like to see a whole bunch of commands with a matching pattern to review and select which is what "hg" provides me with.
mpb · 219 weeks and 4 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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