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Functions

Commands using grep from sorted by
Terminal - Commands using grep - 1,610 results
for a in $(ls /usr/sbin /usr/bin); do ps -fC $a;done|grep -v PPID
2015-04-27 18:15:56
User: knoppix5
Functions: grep ls ps
0

Thanks to pooderbill for the idea :-)

input=a.pdf ; pages=`pdftk $input dump_data | grep -i numberofpages | cut -d" " -f 2`; pdftk A=$input shuffle A1-$[$pages/2] A$pages-$[$pages/2+1] output "${input%.*}.rearranged.${input##*.}"
2015-04-26 20:05:20
User: kobayashison
Functions: cut grep
0

Rearrange pdf document coming from a simplex document feed scanner, feeded first with odd pages, then with even pages from the end. Needs pdftk >1.44 w/ shuffle.

Similar to http://www.commandlinefu.com/commands/view/7965/pdf-simplex-to-duplex-merge where there are 2 separate documents, odd and even

timeDNS() { parallel -j0 --tag dig @{} "$*" ::: 208.67.222.222 208.67.220.220 198.153.192.1 198.153.194.1 156.154.70.1 156.154.71.1 8.8.8.8 8.8.4.4 | grep Query | sort -nk5; }
netstat -anp | grep :80 | grep ESTABLISHED | wc -l
2015-04-10 19:32:31
User: krizzo
Functions: grep netstat wc
Tags: session
-1

This counts all established sessions on port 80. You can change :80 to any port number you want to check.

sudo lsof -i -n | grep sshd | grep sshuser | grep :[PORT-RANGE] | grep -v IPv6 | awk -F\: '{print $2}' | grep -v http | awk -F" " '{print $1}'
2015-04-09 15:41:11
User: das_shark
Functions: awk grep sshd sudo
-1

gets network ports

only ones for the sshd service

only logged in a specific user (changed for public posting)

only in a specific localhost:port range

not IPv6

Only the part of the response after the ":" character

Only the part of the response before the 1st space

Output is just the rssh port

debugfs -R "stat <$(stat --printf=%i filename)>" /dev/sdaX | grep crtime
2015-04-09 01:23:56
User: pggx999
Functions: debugfs grep
3

Return the creation date of a file on ext2, 3, 4 filesystems, because stat command won't show it.

Useful on ubuntu, debian, and else

xset -display :0 q | grep ' Monitor is On' > /dev/null && xset -display :0 dpms force off || xset -display :0 dpms force on
2015-04-06 19:04:04
User: electrotux
Functions: grep
0

Queries whether the monitor is on according to DPMS. If true then turns the monitor off, if false turns it on. The -display option on xset means the command will work from sessions other than the console, such as ssh or a cron'd script. Command should display any errors if there are any problems (eg no X available), otherwise no output if successful.

curl -s http://host.net/url.html | grep magnet | sed -r 's/.*(magnet:[^"]*).*/\1/g'
ps -ef | grep PROCESS | grep -v grep | awk '{system "kill -9" $2}
sudo apt-get purge $(dpkg -l linux-{image,headers}-"[0-9]*" | awk '/ii/{print $2}' | grep -ve "$(uname -r | sed -r 's/-[a-z]+//')")
wmctrl -m | grep Name: | awk '{print $2}'
crontab -l -u USER | grep -v 'YOUR JOB COMMAND or PATTERN' | crontab -u USER -
2015-03-11 13:10:47
User: Koobiac
Functions: crontab grep
1

The "-u USER" is optional if root user is used

grep -xFf <(groups user1|cut -f3- -d\ |sed 's/ /\n/g') <(groups user2|cut -f3- -d\ |sed 's/ /\n/g')
lsof -i -n -P | grep -e "$(ps aux | grep node | grep -v grep | awk -F' ' '{print $2}' | xargs | awk -F' ' '{str = $1; for(i = 2; i < NF; i++) {str = str "\\|" $i} print str}')"
2015-02-14 23:24:00
User: hochmeister
Functions: grep
0

us lsof, grep for any pid matching a given name such as "node".

git rev-list --all|tail -n1|xargs git show|grep -v diff|head -n1|cut -f1-3 -d' '
git rev-list --all|tail -n1|xargs git show|grep -v diff|head -n1|cut -f1-3 -d' '
git branch | grep -v "master" | sed 's/^[ *]*//' | sed 's/^/git branch -D /' | bash
2015-01-31 00:29:32
User: Trindaz
Functions: grep sed
Tags: git
2

Delete all your branches except master (useful after archiving branches)

git branch | grep -v "master" | sed 's/^[ *]*//' | sed 's/.*/& &/' | sed 's/^/git tag archive\//' | bash
2015-01-31 00:26:15
User: Trindaz
Functions: grep sed
Tags: git archive
0

Description by segments delimited by pipe (|)

1. List all git branches

2. Exclude master

3. Trim output and remove display elements such as * next to current branch

4. Repeat branch name after a space (output on each line: branch_name branch_name)

5. Prepend each line with the git tag command

6. Execute the output with bash

udevadm info -q all -n /dev/sdc | grep ID_PATH | cut -d'-' -f 2 | xargs -n 1 lspci -s
2015-01-27 15:34:02
User: mhs
Functions: cut grep info lspci xargs
Tags: lspci udevadm
1

Useful for big systems with lots of cards.

(Update: does not work with USB disks)

ls -l /dev/disk/by-id |grep -v "wwn-" |egrep "[a-zA-Z]{3}$" |sed 's/\.\.\/\.\.\///' |sed -E 's/.*[0-9]{2}:[0-9]{2}\s//' |sed -E 's/->\ //' |sort -k2 |awk '{print $2,$1}' |sed 's/\s/\t/'
2015-01-25 19:29:40
User: lig0n
Functions: awk egrep grep ls sed sort
Tags: zfs disk info
0

This is much easier to parse and do something else with (eg: automagically create ZFS vols) than anything else I've found.

First, the command searches the output of

ls -l /dev/disk/by-id

for "wwn-". It then searches for three letters, followed by the end of a line via the command

egrep "[a-zA-Z]{3}$"

It then replaces "../../" with nothing (separating the three letters out)

From there, it removes all of the permission and user information via

|sed -E 's/.*[0-9]{2}:[0-9]{2}\s//'

Then it removes the arrows -> via

sed -E 's/->\ //'

Afer that, it sorts the output on column 2 (the disk letters) with

sort -k2

From there, it reverses the order of the columns so that our disk letter comes first via

awk '{print $2,$1}'

Finally, it replaces the space separating the two columns with a tab using

sed 's/\s/\t/'

For large ZFS pools, this made creating my vdevs immeasurably easy. By keeping track of which disks were in which slot (spreadsheet) via their serial numbers, I was able to then create my vols simply by copying and pasting the full output of the disk (not the letter) and pasting it into my

zpool create tank raidz2 -o ashift=12 ata-... ata-... ata-... ata-... ata-... ata-...
git branch --merged | grep -v "\*" | xargs -n 1 git branch -d
2015-01-25 00:30:37
User: krizzo
Functions: grep xargs
3

This checks if the branch has been merged with master and then will delete the ones that have been. Keeps your local git repo nice and clean from all the branches.

lsof -ns | grep REG | grep deleted | awk '{a[$1]+=$7;}END{for(i in a){printf("%s %.2f MB\n", i, a[i]/1048576);}}'
psg(){ ps aux | grep -E "[${1:0:1}]${1:1}|^USER"; }
2015-01-01 00:12:45
User: flatcap
Functions: grep ps
Tags: grep function ps
-2

Function that searchs for process by its name:

* Shows the Header for reference

* Hides the process 'grep' from the list

* Case sensitive

The typical problem with using "ps | grep" is that the grep process shows up the in the output.

The usual solution is to search for "[p]attern" instead of "pattern".

This function turns the parameter into just such a [p]attern.

${1:0:1} is the first character of $1

.

${1:1} is characters 2-end of $1
psg(){ ps aux | grep -v grep | egrep -e "$1|USER"; }
2014-12-31 22:27:27
Functions: egrep grep ps
Tags: grep function ps
-1

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

nmap -sP 10.0.0.0/8 | grep -v "Host" | tail -n +3 | tr '\n' ' ' | sed 's|Nmap|\nNmap|g' | grep "MAC Address" | cut -d " " -f5,8-15
2014-12-26 18:31:53
User: jaimerosario
Functions: cut grep sed tail tr
0

In the field, I needed to script a process to scan a specific vendor devices in the network. With the help of nmap, I got all the devices of that particular vendor, and started a scripted netcat session to download configuration files from a tftp server.

This is the nmap loop (part of the script). You can however, add another pipe with grep to filter the vendor/manufacturer devices only. If want to check the whole script, check in http://pastebin.com/ju7h4Xf4