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awk, bash, curl, find, grep, Linux, sed
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Functions

Commands using grep from sorted by
Terminal - Commands using grep - 1,674 results
lsof -i -n -P | grep :80
2009-07-17 15:56:19
User: reeyuk
Functions: grep
0
Up
Down
what?s running on a given port on your machine?
Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
grep -Ir foo *
2009-07-17 15:30:10
User: libdave
Functions: grep
0
Up
Down
recursive grep of text files

short command to find a string in all text files in all subdirectories, excluding all files grep does not deem text files.

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
$ grep -or string path/ | wc -l
2009-07-16 12:50:59
User: ioggstream
Functions: grep wc
Tags: awk grep cut arithmetic
9
Up
Down
count how many times a string appears in a (source code) tree

grep -o puts each occurrence in a separate line

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
while true; do netstat -p |grep "tcp"|grep --color=always "/[a-z]*";sleep 1;done
2009-07-16 04:52:49
User: buffer
Functions: grep netstat
-4
Up
Down
Monitor Applications application that are connected/new connections

The -p parameter tell the netstat to display the PID and name of the program to which each socket belongs or in digestible terms list the program using the net.Hope you know what pipe symbol means!

Presently we wish to only moniter tcp connections so we ask grep to scan for string tcp, now from the op of grep tcp we further scan for regular expression /[a-z]*.

Wonder what that means ?

If we look at the op of netstat -p we can see that the name of the application is preceded by a / ( try netstat -p ) so,now i assume application name contains only characters a to z (usually this is the case) hope now it makes some sense.Regular expression /[a-z]* means to scan a string that start with a / and contains zero or more characters from the range a-z !!. Foof .. is t

Show sample output | Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
grep -rc logged_in app/ | cut -d : -f 2 | awk '{sum+=$1} END {print sum}'
2009-07-15 14:16:44
User: terceiro
Functions: awk cut grep
Tags: awk grep cut arithmetic
-2
Up
Down
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 | Comments (9) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
vim $(grep test *)
2009-07-15 10:15:04
User: goatboy
Functions: grep test vim
Tags: vim grep
4
Up
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Find files containing string and open in vim

I often use "vim -p" to open in tabs rather than buffers.

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export LANG=C; grep string longBigFile.log
2009-07-14 12:48:02
User: ioggstream
Functions: export grep
Tags: grep LANG
0
Up
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Fast grepping (avoiding UTF overhead)

greps using only ascii, skipping the overhead of matching UTF chars.

Some stats:

$ export LANG=C; time grep -c Quit /var/log/mysqld.log

7432

real 0m0.191s

user 0m0.112s

sys 0m0.079s

$ export LANG=en_US.UTF-8; time grep -c Quit /var/log/mysqld.log

7432

real 0m13.462s

user 0m9.485s

sys 0m3.977s

Try strace-ing grep with and without LANG=C

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find . -name '*.html' -print0| xargs -0 -L1 cat |sed "s/[\"\<\>' \t\(\);]/\n/g" |grep "http://" |sort -u
2009-07-14 07:00:15
User: jamespitt
Functions: cat find grep sed sort xargs
4
Up
Down
find external links in all html files in a directory list

Just a handy way to get all the unique links from inside all the html files inside a directory. Can be handy on scripts etc.

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
tar cvfz changes.tar.gz --exclude-vcs `svn diff -rM:N --summarize . | grep . | awk '{print $2}' | grep -E -v '^\.$'`
2009-07-13 19:39:10
User: jaysee
Functions: awk diff grep tar
2
Up
Down
Get a range of SVN revisions from svn diff and tar gz them

Handy when you need to create a list of files to be updated when subversion is not available on the remote host. You can take this tar file, and upload and extract it where you need it. Replace M and N with the revisions specific to yours. Make sure you do this from an updated (svn up) working directory.

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grep <pattern> -R . --exclude-dir='.svn'
2009-07-13 19:08:53
User: log0
Functions: grep
Tags: grep
2
Up
Down
Search through files, ignoring .svn
Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
fmiss() { grep -RL "$*" * }
2009-07-13 18:30:54
User: inkel
Functions: grep
Tags: grep
1
Up
Down
Find files with lines that do not match a pattern

This one would be much faster, as it's only one executed command.

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tokill=`ps -fea|grep process|awk '{ printf $2" "}'`; kill -9 $tokill;
2009-07-11 01:40:29
User: jhansen
Functions: awk grep kill printf
-4
Up
Down
kill some process (same as others) but parsing to a variable
Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ssh [email protected] 'tail --max-unchanged-stats=10 -n0 -F /var/log/auth.log ' | grep Accepted | while read l ; do kdialog --title "SSH monitor" --passivepopup "$l" 3; done
2009-07-10 14:25:35
User: skygreg
Functions: grep read ssh
0
Up
Down
SSH monitor
Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
sudo port installed | grep -v 'active\|The' | xargs sudo port uninstall
2009-07-09 05:15:30
User: letterj
Functions: grep sudo xargs
-1
Up
Down
Uninstall all MacPorts that are no longer active
Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
grep -r 'keyword keyword2' your/path/ | grep -v svn
2009-07-08 20:48:11
User: anis
Functions: grep
-2
Up
Down
find a word in multiple files avoiding svn

this command searches for a keyword or an expression in a path and avoids versionned files

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
find . -not \( -name .svn -prune \) -type f -print0 | xargs --null grep <searchTerm>
2009-07-08 20:08:05
User: qazwart
Functions: find grep xargs
Tags: find xargs grep
8
Up
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Search through files, ignoring .svn

By putting the "-not \( -name .svn -prune \)" in the very front of the "find" command, you eliminate the .svn directories in your find command itself. No need to grep them out.

You can even create an alias for this command:

alias svn_find="find . -not \( -name .svn -prune \)"

Now you can do things like

svn_find -mtime -3
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unzip -lt foo.zip | grep testing | awk '{print $2}' | xargs rm -r
2009-07-08 00:13:10
User: copremesis
Functions: awk grep rm xargs
2
Up
Down
Remove annoying files from recently extracted zip archive

Inspired by http://www.commandlinefu.com/commands/view/2573/remove-all-files-previously-extracted-from-a-tar.gz-file. .... yet for zip files

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LC_ALL=C tr -c "[:digit:]" " " < /dev/urandom | dd cbs=$COLUMNS conv=unblock | GREP_COLOR="1;32" grep --color "[^ ]"
2009-07-02 07:10:33
User: zzambia
Functions: dd grep tr
Tags: color
7
Up
Down
Matrix Style

Solves "tr" issues with non C-locales under BSD-like systems (like OS X)

Comments (6) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
grep -v "\ *#\|^$" /etc/path/to.config
2009-06-30 18:14:46
User: geekboxjockey
Functions: grep
2
Up
Down
Dump a configuration file without comments or whitespace...

A short, *easy-er* to remember command for stripping whitespace and comments from a config file, (or any file for that matter).

Remember regex as:

slash, space, star.

pound, slash, bar.

pointy-hat, dollar. (or "caret, dollar" if you must)

:-P

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tr -c "[:digit:]" " " < /dev/urandom | dd cbs=$COLUMNS conv=unblock | GREP_COLOR="1;32" grep --color "[^ ]"
2009-06-30 17:23:49
User: allinurl
Functions: dd grep tr
Tags: color
64
Up
Down
Matrix Style
Comments (17) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
S=`pidof skype`;grep heap /proc/$S/maps|cut -f1 -d' '|awk -F- '{print "0x" $1 " 0x" $2}'|xargs echo "du me t ">l;gdb -batch -p $S -x l>/dev/null 2>&1;strings t|grep \(smirk|head -n1
2009-06-26 20:03:17
User: alvieboy
Functions: awk cut echo grep head xargs
1
Up
Down
Extract the emoticons regex from a running skype process

Skype has an internal regex which depicts the emoticons it supports. However you cannot simply search the binary file for it. This small 181 character line will do just that, provided skype is running. And of course, only works in linux.

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ps aux | grep -v `whoami`
2009-06-26 08:28:06
User: unixmonkey4415
Functions: grep ps
Tags: Process Management
-4
Up
Down
Check processes runed not by you
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echo "-------------" >> nicinfo.txt; echo "computer name x" >> nicinfo.txt; ifconfig | grep status >> nicinfo.txt; ifconfig | grep inet >> nicinfo.txt; ifconfig | grep ether >> nicinfo.txt; hostinfo | grep type >> nicinfo.txt;
2009-06-25 12:32:37
User: miccaman
Functions: echo grep ifconfig type
Tags: Os X ifconfig
-2
Up
Down
get linkspeed, ip-adress, mac-address and processor type from osx

get desired info from machine and pipe it txt file.

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while true; do { $(which logger) -p local4.notice `free -m | grep Mem`; sleep 60; } done &
2009-06-22 00:29:53
User: Neo23x0
Functions: grep sleep which
3
Up
Down
Log the current memory statistics frequently to syslog

Uses logger in a while loop to log memory statistics frequently into the local syslog server.

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svn status | grep '!' | sed 's/!/ /' | xargs svn del --force
2009-06-20 13:01:07
User: tarzantiger
Functions: grep sed xargs
2
Up
Down
Deleting Files from svn which are missing
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