Commands tagged grep | commandlinefu.com

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Terminal - Commands tagged grep - 350 results

grep -Fvxf $(file1) $(file2) | wc -l

2013-03-27 05:25:15

User: hellojinjie

Functions: grep wc

Tags: grep wc

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calculate how many different lines between two files

lsof -i -P +c 0 +M | grep -i "$1"

2013-03-19 10:42:15

User: opexxx

Functions: grep

Tags: grep lsof

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identify active network connections

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netstat -an | grep --color -i -E 'listen|listening'

2013-03-19 08:53:47

User: opexxx

Functions: grep netstat

Tags: grep netstat

-1

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Open Port Check

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find /some/path -type f -printf '%f\n' | grep -o '\..\+$' | sort | uniq -c | sort -rn

2013-03-18 14:42:29

User: skkzsh

Functions: find grep sort uniq

Tags: sort uniq find grep extension

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list unique file extensions recursively for a path, include extension frequency stats

Get the longest match of file extension (Ex. For 'foo.tar.gz', you get '.tar.gz' instead of '.gz')

pwd|grep -o '/'|perl -ne '$x.="./.";print`readlink -f $x`'|xargs -tn1 chmod 755

2013-03-14 12:03:44

User: luke_skywalker

Functions: chmod grep perl pwd xargs

Tags: perl xargs grep chmod

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Ensure path permissions from '.' prior to root

`pwd` returns the current path

`grep -o` prints each slash on new line

perl generates the paths sequence: './.', './../.', ...

`readlink` canonicalizes paths (it makes the things more transparent)

`xargs -tn1` applies chmod for each of them. Each command applied is getting printed to STDERR.

svn revert .

2013-03-13 06:07:42

User: zhenggc1

Tags: svn awk xargs grep

-3

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Revert all modified files in an SVN repo

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sudo ifconfig wlan0 | grep inet | awk 'NR==1 {print $2}' | cut -c 6-

2013-02-18 14:10:07

User: mouths

Functions: awk cut grep ifconfig sudo

Tags: ifconfig awk grep cut

-1

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Print the local ip on a wireless connection

On wired connections set 'eth0' instead of 'wlan0'

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diff -BI '^#' file{1,2}

2013-02-17 11:53:41

User: zlemini

Functions: diff

Tags: bash diff grep regex

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diff files ignoring comments and blank lines (lines starting with #)

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diff -u <(grep -vE '^(#|$)' file1) <(grep -vE '^(#|$)' file2)

2013-02-12 13:59:39

User: taintedkernel

Functions: diff grep

Tags: bash diff grep regex

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diff files ignoring comments and blank lines (lines starting with #)

Runs a diff on two files ignore comments and blank lines (diff -I=RE does not work as expected). Adapted from a post found on stackexchange.

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grep -H -r "string" ./* >> grep.txt

2013-02-07 19:04:14

User: leonteale

Functions: grep

Tags: grep find text

-3

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find files containing text

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ls -lhR | grep -e "total\|:$"

2013-01-22 04:58:51

User: Sebasg

Functions: grep ls

Tags: ls grep

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List directories recursively showing its sizes using only ls and grep

ls -lhR

Lists everithing using -l "long listing format" wich includes the space used by the folder. Displays it in -h "human readable form" (i.e. 2.2G, 32K), and -R recurses subfolders.

grep -e using a regex, show lines containing the word "total" or a ":" at the end of the line (those with the name of the folder) only.

ls -l /dev/disk/by-id/ | grep '/sda$' | grep -o 'ata[^ ]*'

2013-01-16 17:28:11

User: michelsberg

Functions: grep ls

Tags: ls grep drive

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Get the /dev/disk/by-id fragment for a physical drive

Substitute for #11720

Can probably be even shorter and easier.

grep --color=always -nr 'setLevel' --include=*py | less -SRqg

2013-01-10 03:10:10

User: manuq

Functions: grep less

Tags: less grep project python code colorize

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Grep recursively your Python project with color highlighting the result and line numbers

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curl http://en.wikipedia.org/wiki/List_of_programming_languages | grep "<li>" | awk -F"title=" '{ print $2 }' | awk -F\" '{ print $2 }'

2013-01-09 21:40:11

User: sxiii

Functions: awk grep

Tags: Programming bash awk grep language

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Command to get list of all existing programming languages from Wikipedia article

Requirements: curl, grep, awk, internet connection with access to wikipedia

Loaded page: http://en.wikipedia.org/wiki/List_of_programming_languages

If you can make shorter version of this listgetter, you are welcome to paste it here :)

:vimgrep pattern %

2012-12-30 06:51:10

User: Sebasg

Tags: vim grep

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Grep inside Vim and navigate results

Will search for the given pattern and build a list of occurrences.

Then you can use :copen and :cclose to toggle the list.

When browsing the list, ENTER will take you to that line in the file.

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egrep -v '(\t)?#.*|^$' /etc/apache2/sites-available/default

2012-12-07 06:04:14

User: sc0rp1us

Functions: egrep

Tags: egrep grep

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Clean config from # and empty strings

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find . -name "*.[ch]" -exec grep -i /dev/null "search pharse" {} \;

2012-12-04 20:51:04

User: MikeGoerling

Functions: find grep

Tags: find grep

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Search recursively to find a word or phrase in certain file types, such as C code

Old Sys5 system and SUN computers don't have the -H option. Adding /dev/null forces grep to use the multi-file output and report the file name.

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ifconfig eth0 | grep HW | cut -d " " -f 11

2012-12-04 10:18:22

User: davidnamy

Functions: cut grep ifconfig

Tags: Network ifconfig grep cut

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extraer la MAC del comando ifconfig

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find /path/to/search/directory -exec grep -Hn "pattern" {} \;

2012-11-16 03:26:38

User: user1234

Functions: find grep

Tags: find grep

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If a directory contains softlinks, grep will give lot of warnings. So better use it along with find command so that softlinks are excluded. "Hn" operator will take care that both line number and filename is shown in grep output

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vim $(grep [REGULAR_EXPRESSION] -R * | cut -d":" -f1 | uniq)

2012-11-07 19:30:24

User: eduardostalinho

Functions: cut grep vim

Tags: vim grep

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Open all files with a regular expression in vim

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for k in `git branch -r|awk '{print $1}'`;do echo -e `git show --pretty=format:"%Cgreen%ci_%C(blue)%c r_%Cred%cn_%Creset" $k|head -n 1`$k;done|sort -r|awk -F"_" '{printf("%s %17s %-22s %s\n",$1,$2,$3,$4)}'

2012-10-29 12:38:24

User: varon

Functions: awk echo head sort

Tags: bash git perl grep branches

-1

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Show git branches by date - useful for showing active branches

simple table

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brd = "! f() { for k in $(git branch $@ | sed 's/^..//; s/ .*//'); do echo "$(git log -1 --pretty='%Cgreen%ci %Cblue(%cr)%Creset ' $k) $k" ; done | sort -r; }; f"

2012-09-28 10:20:51

User: michael_n_1138

Tags: bash git perl alias grep branches

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Show git branches by date - useful for showing active branches

Add this line to your ~/.gitconfig for a git alias "git brd" (i.e., brd = (br)anch+(d)ate) which sorts branches by date. Allows you to pass in limited "git branch" options such as "-r" (remote) or "-a" (all). (Note: forum added "$" prefix to command; obviously in gitconfig there is no "$" prefix.)

for file in `svn st | awk '{print $2}'`; do svn revert $file; done

2012-09-14 11:05:29

User: srounce

Functions: awk file

Tags: svn awk xargs grep

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Revert all modified files in an SVN repo

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sudo apt-get remove $(dpkg -l|awk '/^ii linux-image-/{print $2}'|sed 's/linux-image-//'|awk -v v=`uname -r` 'v>$0'|sed 's/-generic*//'|awk '{printf("linux-headers-%s\nlinux-headers-%s-generic*\nlinux-image-%s-generic*\n",$0,$0,$0)}')

2012-08-15 10:02:12

User: mtron

Functions: awk sed sudo

Tags: Debian Linux awk apt-get grep kernel dpkg

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Remove all unused kernels with apt-get

Remove old kernels (*-generic and *-generic-pae) via apt-get on debian/ubuntu based systems. Tested on ubuntu 10.04 - 12.04.

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egrep_escape() { echo "$1" |sed -re 's/([\\.*+?(|)^$[])/\\\1/g' -e 's/\{/[{]/g'; }

2012-08-02 16:54:43

User: regnarg

Functions: echo sed

Tags: grep escape

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Escape literal string for inclusion in an egrep regex

Use if you want to include untrusted literal strings in your grep regexes.

I use it to list all mounts below a directory:

dir=/mnt/gentoo; cat /proc/mounts |awk '{print $2}' |egrep "^$(egrep_escape "$dir")(/|$)"

/mnt/gentoo

/mnt/gentoo/proc

/mnt/gentoo/sys

/mnt/gentoo/dev

/mnt/gentoo/home

Works even if $dir contains dangerous characters (e.g. comes from a commandline argument).

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