Commands using grep sorted by votes

Commands using grep (1,935)

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Get the current svn branch/tag (Good for PS1/PROMPT_COMMAND cases)

Diverse trunk and branch, when last index is trunk, show trunk repository name when last index minus one is branches, show branch repository name
This is sample output - yours may be different.
0

svn info | grep ^URL | awk 'BEGIN {FS="\/"}; {if($(NF-1)=="branches") {print $NF} else if($NF=="trunk") {print $(NF-1)} else {print $NF} } '

mtaqwim · 2016-10-18 02:16:45 17
Use tail -f effectively by omiting unwanted lines containing particular pattern of words using grep -v.

This will be useful when checking for logs and have to omit specific weblogic or apache server's log information which are redundant and unnecessary. Show Sample Output
This is sample output - yours may be different.
```
[surya@suryalinux work]$ tail -f test | grep -v "bea"
19-07-2015
radar
liril
mayam
kayak

h4CkR
summa
sdlfjsk
```
0

tail -f test | grep -v "bea"

suryadavinci · 2016-10-28 21:05:42 17
Quickly search OpenVZ container by IP and enter it
This is sample output - yours may be different.
0

vzctl enter `vzlist -a | grep $CONTAINER_IP 2 | awk '{ print $1}'`

fugitive · 2016-11-14 22:10:16 16
get the resolution of desktop

get the resolution of current desktop settings Show Sample Output
This is sample output - yours may be different.
```
1368x768+0+0
```
0

xwininfo -root | grep 'geometry' | awk '{print $2;}'

aysadk · 2017-01-15 14:35:35 16
Remove all docker images to cleanup disk
This is sample output - yours may be different.
0

docker images | awk '{ print $3 }' | grep -v IMAGE | xargs docker rmi

kofrezo · 2017-01-25 12:14:41 19
[MySQL] Get which table were dumped in [mysql_dump_file]

Show Sample Output
This is sample output - yours may be different.
```
table1 table2 table3 ...
```
0

cat [mysql_dump_file] | grep "Table structure" | cut -c 30- | tr '\n' ' ' | rev | cut -c 2- | rev | tr -d '`'

Lidorah · 2017-02-08 09:26:01 16
Diff 2 branches, for a type of file & having a string in the diff

Diff 2 branches, for a type of file & having a string in the diff
This is sample output - yours may be different.
0

git diff t1_clone tlocal4 --name-only | grep -i "swift" | xargs git diff t1_clone tlocal4 --word-diff-regex="NSLocalized"

ashish2 · 2017-02-08 11:50:45 17
Find text in contents with multiple filename

-name : base of filename -o : 'or' '*.c' : avoiding "paths must precede expression" error message -type f : only find file type --color: hightlight specific word with color -E : extended regexp Show Sample Output
This is sample output - yours may be different.
```
./test.c: int Data;
./test.c: int iData;
./test.h: float fnData();
```
0

find ./$(PATH) -name '*.h' -o -name '*.c' -type f | xargs grep --color -E '*Data*'

debpolaris · 2017-02-10 04:17:16 19
search and cut between two strings

to find and cut between to strings with grep and cut Show Sample Output
This is sample output - yours may be different.
```
link to open
```
0

echo '<div class="Btn">link to open </div>' | grep -oP '(?<="Btn").*?(?= </div>)' | cut -d ">" -f2

aysadk · 2017-02-16 21:21:50 17
get all the IP addresses currently blocked by UFW (uncomplicated firewall)

Useful in scripts to compare known malicious IP addresses with what you are actually blocking. Show Sample Output
This is sample output - yours may be different.
```
217.118.95.89
217.12.113.114
```
0

ufw status | sort | uniq | grep -E -o "([0-9]{1,3}[\.]){3}[0-9]{1,3}"

harvix · 2017-02-17 12:12:44 18
Toggle the Touchpad on or off
This is sample output - yours may be different.
0

synclient TouchpadOff=$(synclient -l | grep -q 'TouchpadOff.*1'; echo $?)

Cas00 · 2017-03-11 12:11:01 20
the executable that started the currently running oracle databases and the ORACLE_HOME relative to each

Show the executable that spawned the process and show the PID and ORACLE_HOME relative to the environment within which the process is running.
This is sample output - yours may be different.
0

ps -ef | grep [p]mon | awk '{print $2}' | xargs -I {} ps eww {} | awk '{print $1 " " $5 " " $6 " " $0}' | sed 's/$S*$ $S*$ .*ORACLE_HOME/\1 \2/g' | cut -f1,2,3 -d" "

Enirevlow · 2017-03-24 18:45:40 18
Check the connection of the maximum number of IP

Check the connection of the maximum number of IP Show Sample Output
This is sample output - yours may be different.
```
      2 10.177.137.104
      2 10.139.17.154
      1 10.219.144.207
      1 10.137.2.204
      1 10.137.138.17
      1 10.130.0.238
```
0

netstat -na | grep ESTABLISHED | awk '{print$5}' | awk -F : '{print$1}' | sort | uniq -c | sort -r

casechen · 2017-03-26 12:12:09 17
grep for text in a specific file type
This is sample output - yours may be different.
0

grep -rnw <directory to search for> -e --include \*.x "your_text"

jutop · 2017-04-12 09:02:39 26
grep for text in a specific file type
This is sample output - yours may be different.
0

grep -rnw --include \*.x -e "text" <dir>

jutop · 2017-04-12 09:15:25 19
Get the total length of all video / audio in the current dir (and below) in H:m:s

All the other example fail when running in a folder containing too many files due to * being saturated. This command does not use *, allowing me to run it in one folder containing over 300000 audio files. As to running on so many files, I used GNU parallel in order to spawn as many processes as cores, tremendously fasting up the process. Show Sample Output
This is sample output - yours may be different.
```
0:11:3
```
0

ls|grep ".wav"|parallel -j$(nproc) soxi -D {}|awk '{SUM += $1} END { printf "%d:%d:%d\n",SUM/3600,SUM%3600/60,SUM%60}'

jupiter126 · 2017-05-02 21:37:24 20
check if ufw (uncomplicated firewall) is enabled in bash

Show Sample Output
This is sample output - yours may be different.
```
disabled
```
0

if grep ENABLED=yes /etc/ufw/ufw.conf>/dev/null; then echo "enabled"; else echo "disabled"; fi

phrik · 2017-05-04 07:15:48 20
Search for a string in all files recursively
This is sample output - yours may be different.
0

find . -type f | xargs grep <keyword>

tlezotte · 2017-05-04 13:57:01 19
One line keylogger

Taken from: https://unix.stackexchange.com/questions/129159/record-every-keystroke-and-store-in-a-file Author: Stephane Chazelas Show Sample Output
This is sample output - yours may be different.
```
key release 36 [Return]
key press   37 [Control_L]
key release 37 [Control_L]
key press   105 [Control_R]
key release 105 [Control_R]
key press   10 [1]
key release 10 [1]
key press   67 [F1]
key release 67 [F1]
key press   37 [Control_L]
key press   54 [c]
```
0

xinput list | grep -Po 'id=\K\d+(?=.*slave\s*keyboard)' | xargs -P0 -n1 xinput test

atemvm · 2017-05-09 16:56:14 154
get process id of command
This is sample output - yours may be different.
0

processid=$(ps aux | grep 'nginx' | grep -v grep| awk '{print $2}')

aysadk · 2017-05-13 22:42:33 17

Watch all postgres processes, sorted by memory use

Continuously watches postgres, showing the instances using the most RAM at the top. Show Sample Output

watch -n 1 '{ ps aux | head -n 1; ps aux --sort -rss | grep postgres | grep -v grep; } | cat'

carbocation · 2017-05-14 17:01:44 16

get processid of running process

alternative to pidof command Show Sample Output
This is sample output - yours may be different.
```
12345
```
0

processid =$(ps aux | grep 'ProcessName' | grep -v grep| awk '{print $2}')

aysadk · 2017-05-21 19:52:12 17
get the public ip adress of server on shell
This is sample output - yours may be different.
0

ifconfig | grep "inet addr:" | cut -d: -f2 | awk {'print($1)'} | grep -v 127.0

aysadk · 2017-05-23 21:43:15 17
List all IP's connected to port 80
This is sample output - yours may be different.
0

netstat -tn 2>/dev/null | grep :80 | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -nr | head

kumarrav90 · 2017-05-28 10:57:14 15
grep multiple value matches that matches all togetger one the same value(concurrency) also
This is sample output - yours may be different.
0

grep '^$default\|smtp\|relay$[^ ]*concurrency[^ ]*'

aysadk · 2017-06-04 15:26:35 17
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calulate established tcp connection of local machine

If you want prepend/append text just wrap in echo: $echo Connected: `netstat -an|grep -ci "tcp.*established"`

Daemonize nc - Transmit a file like a http server

Allow to launch nc like a daemon, in background until you still stop it. You can stop it with kill %1 (jobs method) or kill PID. The -k option can force nc to listen another connection, but if you use redirection, it will work only one time. The loop's inside doesn't do anything, but we can imagine to send a message to screen when a connection is established

Open the current project on Github by typing gh

Written for Mac OSX. When you are working in a project and want to open it on Github.com, just type "gh" and your default browser will open with the repo you are in. Works for submodules, and repo's that you don't own. You'll need to copy / paste this command into a gh.sh file, then create an alias in your bash or zsh profile to the gh.sh script. Detailed instructions here if you still need help: http://gist.github.com/1917716

Resize all JPEGs in a directory

This command requires the imagemagick libraries and will resize all files with the .jpg extension to a width of 1024 pixels and will keep the same proportions as the original image.

Continue a current job in the background

Simple MAC Changeing

The 00:11:22:33:44:55 is whatever you want your new MAC address to be. Sometimes sudo should be used in front if you need to.

Block all IP addresses and domains that have attempted brute force SSH login to computer

Searches all log files (including archived bzip2 files) for invalid user and PAM authentication errors, both of which are indicative of brute force attempts at logging into computer. A list of all unique IP addresses and domain names is appended to hosts.deny. The command (and grep error messages) will work on Mac OS X 10.6, small adjustments may be needed for other OSs.

flush memcached via netcat

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Print the 16 most recent RPM packages installed in newest to oldest order

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Commands using grep (1,935)

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