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Commands using grep from sorted by
Terminal - Commands using grep - 1,519 results
for id in `ls -1 ~/.ssh | grep -v "authorized\|known_hosts\|config\|\."` ; do echo -n "$id: " ; ssh-keygen -l -f .ssh/$id ; done
2014-04-16 14:12:20
User: drockney
Functions: echo grep id ssh-keygen
0

Find all private keys and dump their fingerprints.

find -type f -exec grep -q "regexp" {} \; -delete
2014-04-06 19:06:50
User: gumnos
Functions: find grep
Tags: find grep
2

Deletes files in the current directory or its subdirectories that match "regexp" but handle directories, newlines, spaces, and other funky characters better than the original #13315. Also uses grep's "-q" to be quiet and quit at the first match, making this much faster. No need for awk either.

grep -Rl "pattern" files_or_dir
2014-04-06 18:18:07
User: N1nsun
Functions: grep
Tags: awk find grep
0

Grep can search files and directories recursively. Using the -Z option and xargs -0 you can get all results on one line with escaped spaces, suitable for other commands like rm.

find . | xargs grep -l "FOOBAR" | awk '{print "rm -f "$1}' > doit.sh
2014-04-06 15:48:41
User: sergeylukin
Functions: awk find grep xargs
Tags: awk find grep
-2

After this command you can review doit.sh file before executing it.

If it looks good, execute: `. doit.sh`

echo $(sudo lshw -businfo | grep -B 1 -m 1 $(df "/path/to/file" | tail -1 | awk '{print $1}' | cut -c 6-8) | head -n 1 | awk '{print $1}' | cut -c 5- | tr ":" "-") | sudo tee /sys/bus/usb/drivers/usb/unbind
2014-04-06 12:06:29
User: tweet78
Functions: awk cut df echo grep head sudo tail tee tr
23

You have an external USB drive or key.

Apply this command (using the file path of anything on your device) and it will simulate the unplug of this device.

If you just want the port, just type :

echo $(sudo lshw -businfo | grep -B 1 -m 1 $(df "/path/to/file" | tail -1 | awk '{print $1}' | cut -c 6-8) | head -n 1 | awk '{print $1}' | cut -c 5- | tr ":" "-")

function hg () { history | grep $* ; } # define a function combining history and grep to save typing :-)
2014-04-02 15:17:31
User: mpb
Functions: grep
4

By defining a function "hg" 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 "hg".

A nifty time saver :-)

You can also add the "hg" function definition to your .bashrc so it is defined each time you login.

dmesg | grep -Po 'csum failed ino\S* \d+' | awk '{print $4}' | sort -u | xargs -n 1 find / -inum 2> /dev/null
2014-03-22 12:22:46
User: Sepero
Functions: awk dmesg find grep sort xargs
Tags: find inode btrfs
1

Btrfs reports the inode numbers of files with failed checksums. Use `find` to lookup the file names of those inodes. The files may need to be deleted and replaced with backups.

dmesg | grep -Po 'csum failed ino\S* \d+' | sort | uniq | xargs -n 3 find / -inum 2> /dev/null
2014-03-20 06:27:15
User: Sepero
Functions: dmesg find grep sort uniq xargs
Tags: find inode btrfs
-1

Btrfs reports the inode numbers of files with failed checksums. Use `find` to lookup the file names of those inodes.

psql -h <SERVER NAME HERE> -c 'SELECT version();' | grep -v 'version\|---\|row\|^ *$' | sed 's/^\s*//'
2014-03-17 18:36:40
User: pnelsonsr
Functions: grep sed
0

In a multiple PostgreSQL server environment knowing the servers version can be important. Note that psql --version returns just the local psql apps version which may not be what you want. This command dumps the PostgreSQL servers version out to one line. You may need to add more command line options to the psql command for your connection environment.

for i in `sudo /sbin/fdisk -l |grep Disk |grep dev |awk '{ print $2 }' |sed s/://g` ; do sudo /usr/bin/dd if=/dev/urandom of=$i bs=8M & done
2014-03-16 12:04:59
User: aimana007
Functions: awk grep sed sudo
Tags: bash Linux
0

This command will use the fdisk utility to find all block devices on your system, and overwrite them with data from the /dev/urandom non-blocking random number generator.

CAUTION: This will irrevocably erase EVERY SINGLE physical block storage device visible to the fdisk utility, including plugged USB devices, RAID sets, LVM, etc.

wmic OS get OSArchitecture /value | grep -Eo '[^=]*$'
2014-03-15 02:04:08
User: lowjax
Functions: get grep
0

Using "wmic get * /value" within any Cygwin shell will return lots of Win/Dos newline junk ie "^M$" at the end of found value line, two lines ("$" Unix newline) above, and three below. This makes storing and or evaluating wmic queries as variables a pain. The method i suggest strips the mentioned junk, only returns the value after "OSArchitecture=", and includes only one Unix style newline. Other methods using sed|awk|cut can only handle the output of wmic cleanly when piped or using multiple sed statements.

wmic OS get OSArchitecture /value | sed 's/\r//g;s/^M$//;/^$/d;s/.*=//'

making

wmic OS get OSArchitecture /value | grep -Eo '[^=]*$'

a much cleaner and slightly less costly alternative.

ls | grep ".txt$" | xargs -i WHATEVER_COMMAND {}
/usr/bin/lynx -dump -width 500 http://127.0.0.1/whm-server-status | grep GET | awk '{print $12 $14}' | sort | uniq -c | sort -rn | head
2014-03-12 13:24:40
User: copocaneta
Functions: awk grep sort uniq
0

List the busiest scripts/files running on a cPanel server with domain showing (column $12).

netstat -tn 2>/dev/null | grep ':80 ' | awk '{print $5}' |sed -e 's/::ffff://' | cut -f1 -d: | sort | uniq -c | sort -rn | head
2014-03-12 12:43:07
User: copocaneta
Functions: awk cut grep netstat sed sort uniq
1

IP addresses and number of connections connected to port 80.

/usr/bin/lynx -dump -width 500 http://127.0.0.1/whm-server-status | grep GET | awk '{print $12}' | sort | uniq -c | sort -rn | head
2014-03-12 12:31:34
User: copocaneta
Functions: awk grep sort uniq
0

Easiest way to obtain the busiest website list (sorted by number of process running).

lsof | grep -i deleted | grep REG | grep -v txt | ruby -r 'pp' -e 'STDIN.each do |v| a = v.split(/ +/); puts `:> /proc/#{a[1]}/fd/#{a[3].chop}`; end'
2014-03-11 06:02:09
User: jim80net
Functions: grep
0

Be careful, first run:

lsof | grep -i deleted | grep REG | grep -v txt

Then, give it the boot!

grep -r --include=*.php "something" /foo/bar
2014-03-07 13:26:12
User: avpod2
Functions: grep
0

Actually grep can do recursive search based on file extensions.

grep -o -P '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\:[0-9]{1,5}\s->\s{5}[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\:[0-9]{1,5}' <capture file> | tr -d ' ' | sed 's/:.....//g' | sort -n | uniq -c | sort -nr
2014-03-05 21:34:42
User: santizo
Functions: grep sed sort tr uniq
1

Sort netflow packet capture by unique connections excluding source port.

lspci -vv | grep 'Ethernet\|Serial' | awk 'NR == 1{ printf $1 } NR == 2 { print " mac " $7 }' | sed ?e 's/-/:/g' -e 's/:f[ef]:f[ef]//g' -e 's/01:00.0/eth0/g' -e 's/01:00.1/eth1/g' -e 's/01:00.2/eth2/g' -e 's/01:00.3/eth3/g' > /etc/iftab && ifrename
2014-03-01 20:07:18
User: PROJAK_SX
Functions: awk grep lspci printf sed
0

for redhat systems works sometimes :S tested on dell poweredge r7+ systems

cat /proc/cpuinfo | grep BogoMIPS | uniq | sed 's/^.*://g' | awk '{print($1 / 4) }'
locate *\\.php|xargs grep --color=always -i -5 "namespace\s.*\W"|less
2014-02-28 13:52:15
Functions: grep locate xargs
0

Another way to view some code by keyword and basic regular expression

arecord -q -f cd -d 1 recvol.wav;sox recvol.wav -n stat 2>&1|grep RMS|grep amplitude|cut -d"." -f2|cut -c 1-2>recvol;echo $((`cat recvol`+1))>recvol;rec -t wav - silence 1 0.1 `cat recvol` -1 1.0 `cat recvol`%|lame -s 44.1 -a -v - >record.mp3
2014-02-27 23:23:55
User: geaplanet
Functions: arecord cd cut echo grep stat
0

It find out the mic recording level at the moment of run the command and if a noise level is higher it starts to record an mp3 file. The resulting file will have only the sounds not the silences.

eval $(history | cut -c 8- | grep "adb connect [0-9]" | tail -1)
2014-02-27 14:44:27
User: CanOrhan
Functions: cut eval grep tail
0

Connects to the last adb connection in history.

ps -eo pmem,comm | grep application-name
2014-02-23 13:21:29
User: Darkstar
Functions: grep ps
0

Displays memory usage for individual instances of an application that spawns multiple instances of itself. This command also works on single process applications.

sudo lsof -i -n -P | grep TCP