Commands tagged grep sorted by votes

Commands tagged grep (409)

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find names of files ending in *log that have both foo and bar

Uses xargs to call the second grep with the first grep's results as arguments
This is sample output - yours may be different.
-1

grep -l bar *.log | xargs grep -l foo

dlebauer · 2011-01-10 19:54:46 3
Search through files, ignoring .svn

Unless you have files that include 'svn' in them, this should provide enough information to be useful. If you need to be certain, add the leading dot in the search pattern
This is sample output - yours may be different.
-1

find . | grep -v svn

gwchamb · 2011-01-16 03:51:57 4
Fetch current song from last.fm
This is sample output - yours may be different.
-1

curl -s http://www.last.fm/user/$LASTFMUSER | grep -A 1 subjectCell | sed -e 's#<[^>]*>##g' | head -n2 | tail -n1 | sed 's/^[[:space:]]*//g'

sn0opy · 2011-01-24 08:16:48 3
Find artist and title of a music cd, UPC code given (first result only)

Substitute that 724349691704 with an UPC of a CD you have at hand, and (hopefully) this oneliner should return the $Artist - $Title, querying discogs.com. Yes, I know, all that head/tail/grep crap can be improved with a single sed command, feel free to send "patches" :D Enjoy! Show Sample Output
This is sample output - yours may be different.
```
Iron Maiden - Killers
```
-1

wget http://www.discogs.com/search?q=724349691704 -O foobar &> /dev/null ; grep \/release\/ foobar | head -2 | tail -1 | sed -e 's/^<div>.*>$.*$<\/a><\/div>/\1/' ; rm foobar

TetsuyO · 2011-01-30 23:34:54 3
External IP address
This is sample output - yours may be different.
-1

curl ifconfig.me

juanmi · 2011-02-28 17:36:07 4
Clean-up release directories keeping the only the latest two

Deletes capistrano-style release directories (except that there are dashes between the YYYY-MM-DD) Show Sample Output
This is sample output - yours may be different.
```
user@server:~/apps/appname/releases$ ls
2010-12-02-121502  2010-12-01-215457
```
-1

find . -maxdepth 1 -type d | grep -Pv "^.$" | sort -rn --field-separator="-" | sed -n '3,$p' | xargs rm -rf

wilmoore · 2011-03-08 17:38:26 6
Remove all unused kernels with apt-get

Same as 7272 but that one was too dangerous so i added -P to prompt users to continue or cancel Note the double space: "...^ii␣␣linux-image-2..." Like 5813, but fixes two bugs: [1]This leaves the meta-packages 'linux-headers-generic' and 'linux-image-generic' alone so that automatic upgrades work correctly in the future. [2]Kernels newer than the currently running one are left alone (this can happen if you didn't reboot after installing a new kernel).
This is sample output - yours may be different.
-1

sudo aptitude remove -P $(dpkg -l|awk '/^ii linux-image-2/{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)}')

Bonster · 2011-04-25 05:19:57 3
convert chrome html export to folders, links and descriptions

chrome only lets you export in html format, with a lot of table junk, this command will just export the titles of the links and the links without all that extra junk Show Sample Output
This is sample output - yours may be different.
```
<h3>search engines</h3>
<a href="http://google.com/">google search engine</a>
```
-1

grep -E '<DT><A|<DT><H3' bookmarks.html | sed 's/<DT>//' | sed '/Bookmarks bar/d' | sed 's/ ADD_DATE=\".*\"//g' | sed 's/^[ \t]*//' | tr '<A HREF' '<a href'

chrismccoy · 2011-05-26 22:21:01 8
Count the lines of source code in directory, ignoring files in generated by svn

There's nothing particularly novel about this combination of find, grep, and wc, I'm just putting it here in case I want it again. Show Sample Output
This is sample output - yours may be different.
```
123 ./src/java/com/company/app/service/Foo.java
 42 ./test/java/com/company/app/service/FooTests.java
165 total
```
-1

find . -name '*.java' -o -name '*.xml' | grep -v '\.svn' | xargs wc -l

ewilson · 2011-06-30 12:45:40 5
Alternative for basename using grep to extract file name

fileName /path/to/file.ext quivalent to basename /path/to/file.ext Show Sample Output
This is sample output - yours may be different.
```
$ fileName /path/to/file.ext
file.ext
$ 
```
-1

fileName() { echo "$1" | grep -o "[^/]*$"; }

totti · 2011-08-19 18:16:22 3
Show all TODOs and a few relative lines after it.

This will recursively go through every file under the current directory showing all lines containing "TODO" as well as 10 lines after it. The output will be marked with line numbers to make it easier to find where the TODO is in the actual file.
This is sample output - yours may be different.
-1

grep -rnA 10 TODO *

blockcipher · 2011-09-28 16:26:14 3
find&grep all in once

calls grep on all non-binary files returned by find on its current working directory Show Sample Output
This is sample output - yours may be different.
```
./Main.java://	public static void main(String[] args) throws IOException
```
-1

#!/bin/bash find | grep -P -v "(class)|(zip)|(png)|(gz)|(gif)|(jpeg)|(jpg)" | xargs -I @ grep -H $1 @

kirdie · 2011-10-14 13:28:49 4
find php files even without extension

needs grep what supports '--recursive' Show Sample Output
This is sample output - yours may be different.
```
./CustomFields/add-avatars.php
./examples/example-widget.php
./examples/multiwidget.php
./examples/Recent_Comments.php
./examples/Recent_Posts.php
```
-1

grep -Ilr "<?php" .

mitry · 2011-10-23 05:11:53 3
multiline re search recursive
This is sample output - yours may be different.
-1

pcregrep --color -M -N CRLF -e "SQLEngine\.\w+\W*$[^$]*\)" -r --include='\.java$'

hute37 · 2012-01-16 09:19:40 6
Show git branches by date - useful for showing active branches

simple table
This is sample output - yours may be different.
-1

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)}'

varon · 2012-10-29 12:38:24 6
Print the local ip on a wireless connection

On wired connections set 'eth0' instead of 'wlan0'
This is sample output - yours may be different.
-1

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

mouths · 2013-02-18 14:10:07 8
Open Port Check

Open Port Check
This is sample output - yours may be different.
-1

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

opexxx · 2013-03-19 08:53:47 6
Easily find an old command you run
This is sample output - yours may be different.
-1

cat $HISTFILE | grep command

Stolas · 2013-05-01 13:11:05 7
Sort files in $PWD by year embedded anywhere in filename
This is sample output - yours may be different.
-1

ls --color=never -1| grep -E "[0-9]{4}"|sed -re "s/^(.*)([0-9]{4})(.*)$/\2 \1\2\3/" | sort -r

ysangkok · 2014-01-04 20:50:12 9
find and output files content with filtering by filename and specific string
This is sample output - yours may be different.
-1

find . -name *.properties -exec /bin/echo {} \; -exec cat {} \; | grep -E 'listen|properties'

altern · 2014-02-17 02:25:49 7

Function that searchs a process by its name and shows in the terminal. * Shows the Header for reference * Hides the process 'grep' from the list * Case sensitive Show Sample Output

-1

psg(){ ps aux | grep -v grep | egrep -e "$1|USER"; }

ivanalejandro0 · 2014-12-31 22:27:27 9

Code to check if a module is used in python code
This is sample output - yours may be different.
-1

find . -name "*.ipynb" -exec grep -l "symspellpy" {} \;

shantanuo · 2021-01-17 03:49:03 213
Show live HTTP requests being made on OS X

Replace "en1" with your network interface (on OS X, usually en0, en1, eth0, etc..) Show Sample Output
This is sample output - yours may be different.
```
GET /services/rest/news/new/?stamp=1238809183049 HTTP/1.1
Host: www.qbn.com
GET / HTTP/1.1
Host: news.bbc.co.uk
GET /services/rest/news/new/?stamp=1238809185049 HTTP/1.1
Host: www.qbn.com
```
-2

sudo tcpdump -i en1 -n -s 0 -w - | grep -a -o -E "Host\: .*|GET \/.*"

peterc · 2009-04-04 01:41:48 8
Find 'foo' in located files

Greps located files for an expression. Example greps all LaTeX files for 'foo': locate *.tex | xargs grep foo To avoid searching thousands of files with grep it could be usefull to test first how much files are returned by locate: locate -c *.tex
This is sample output - yours may be different.
-2

locate searchstring | xargs grep foo

zimon · 2009-04-16 12:51:24 5
count how many times a string appears in a (source code) tree

grep's -c outputs how may matches there are for a given file as "file:N", cut takes the N's and awk does the sum. Show Sample Output
This is sample output - yours may be different.
```
34
```
-2

grep -rc logged_in app/ | cut -d : -f 2 | awk '{sum+=$1} END {print sum}'

terceiro · 2009-07-15 14:16:44 9
‹ First < 13 14 15 16 17 >

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Create a square thumbnail or favicon using ImageMagick

Resize `file.png` to a 32x32 px image. Use a value other than 32 to create other icon sizes (e.g. 16x16 or 32x32). Combine two favicon sizes using: `convert icon-16px.png icon-32px.png favicon.ico` For a social media preview image, use `2:1#` for the extent and `1200` for the scale.

Get the full path of a bash script's Git repository head.

Rather than complicated and fragile paths relative to a script like "../../other", this command will retrieve the full path of the file's repository head. Safe with spaces in directory names. Works within a symlinked directory. Broken down: $cd "$(dirname "${BASH_SOURCE[0]}")" temporarily changes directories within this expansion. Double quoted "$(dirname" and ")" with unquoted ${BASH_SOURCE[0]} allows spaces in the path. $git rev-parse --show-toplevel gets the full path of the repository head of the current working directory, which was temporarily changed by the "cd".

Create full backups of individual folders using find and tar-gzip

Problem: I wanted to backup user data individually. In this example, all user data is located in "/mnt/storage/profiles", and about 25 folders inside, each with a username ( /mnt/storage/profiles/mike; /mnt/storage/profiles/lucy ...) I need each individual folder backed up, not the whole "/mnt/storage/profiles". So, using find while excluding directories depth and creating two variables (tarfile=username & desdir=destination), tar will create a .tgz file for each folder, resulting in a "mike_full.tgz" and "lucy_full.tgz".

Rename all files in a directory to the md5 hash

monitor network traffic and throughput in real time

see http://iptraf.seul.org/ for all kinds of documentation and screenshots

Eliminate dead symlinks interactively in /usr/ recursevely

Its not mine... I get from textlive migration in gentoo : http://www.gentoo.org/proj/en/tex/texlive-migration-guide.xml

Follow a new friend on twitter

replace username, password, and nameofnewfriend with proper values. Remember to escape things like ! or & in your password

Create a bunch of dummy files for testing

Sometimes I need to create a directory of files to operate on to test out some commandlinefu I am cooking up. The main thing is the range ({1..N}) expansion.

RTFM function

Some commands have more information on 'info' than in the man pages

Function that counts recursively number of lines of all files in specified folders

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Commands tagged grep (409)

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