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Commands using grep from sorted by
Terminal - Commands using grep - 1,519 results
cat /var/log/secure | grep smtp | awk '{print $9}' | cut -f2 -d= | sort | uniq -c | sort -n | tail
2009-03-30 15:49:54
User: empulse
Functions: awk cat cut grep sort uniq
-2
Up
Down
List SMTP connections by host

Searches /var/log/secure for smtp connections then lists these by number of connections made and hosts.

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat /var/log/secure | grep sshd | grep Failed | sed 's/invalid//' | sed 's/user//' | awk '{print $11}' | sort | uniq -c | sort -n
2009-03-30 15:48:24
User: empulse
Functions: awk cat grep sed sort sshd uniq
8
Up
Down
Find brute force attempts on SSHd

Searches the /var/log/secure log file for Failed and/or invalid user log in attempts.

Show sample output | Comments (7) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
svn rm `svn status | grep "\!" | cut -c 8-`
2009-03-29 13:28:55
User: benschw
Functions: cut grep rm
Tags: svn
0
Up
Down
Clean up after improper deletes in subversion

If (when) you forget to "svn rm" files from your repository, use this to let your repository know you want those files gone. Of course this works with adding and reverting too.

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
< /path/to/file.txt grep foo
2009-03-29 02:43:40
User: atoponce
Functions: grep
15
Up
Down
Redirect STDIN

Several times, I find myself hitting my up arrow, and changing the search term. Unfortunately, I find myself wasting too much time typing:

grep kernel /var/log/messages

Redirecting STDIN allows me to put the search term at the end so I less cursor movement to change what I'm searching for:

< /var/log/messages grep kernel

If you're using the emacs keyboard binding, then after you press your up arrow, press CTRL+w to erase the word.

If this has already been submitted, I couldn't find it with the search utility.

Comments (7) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
rpm -q kernel-2* | grep -v $(uname -r) | xargs yum erase -y
2009-03-28 21:41:15
User: Nick
Functions: grep rpm uname xargs
1
Up
Down
Clean the /boot directory

On Fedora clean the boot directory; erase older kernel

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
service --status-all | grep running
2009-03-27 19:53:30
User: Williebee
Functions: grep
1
Up
Down
list services running (as root)

A quick way to list services running

Comments (5) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
perl -pi -e 's/foo/bar/g' $(grep -rl foo ./*)
2009-03-27 17:21:35
User: dopeman
Functions: grep perl
Tags: perl
-1
Up
Down
Change all instances of a word in all files in the current directory and it's sub-directories

This command will replace all instances of 'foo' with 'bar' in all files in the current working directory and any sub-directories.

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
perl -pi -e 's/foo/bar/g' $(grep -l foo ./*)
2009-03-27 17:18:08
User: dopeman
Functions: grep perl
-1
Up
Down
Change all instances of a word in all files in the current directory

This command will replace all instances of 'foo' with 'bar' in all files in the current working directory.

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
netstat -an | grep -i listen
2009-03-27 13:19:29
User: lfcipriani
Functions: grep netstat
-6
Up
Down
See a list of ports running
Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
while true; do X=$Y; sleep 1; Y=$(ifconfig eth0|grep RX\ bytes|awk '{ print $2 }'|cut -d : -f 2); echo "$(( Y-X )) bps"; done
2009-03-27 08:26:39
User: stuntdawg
Functions: awk cut echo grep ifconfig sleep
Tags: bash Linux ifconfig
10
Up
Down
Measures download speed on eth0
Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
function svnundopoint() { if [ -d .undo ]; then r=`svn info | grep Revision | cut -f 2 -d ' '` && t=`date +%F_%T` && f=${t}rev${r} && svn diff>.undo/$f && svn stat>.undo/stat_$f; else echo Missing .undo directory; fi }
2009-03-27 07:14:31
User: codeape
Functions: cut echo grep info
Tags: bash svn
2
Up
Down
Create subversion undo point

Allows you to save progress without committing.

To revert to an undo point, svn revert then apply the undo point with patch.

svn revert -R . && patch -p0 < .undo/2009-03-27_08:08:11rev57

Similar: http://www.commandlinefu.com/commands/view/373/archive-all-files-containing-local-changes-svn

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
find /proc -regex '/proc/[0-9]+/smaps' -exec grep -l "$PATH_REGEX" {} \; | cut -d'/' -f2
2009-03-25 16:33:44
User: juddmaltin
Functions: cut find grep
1
Up
Down
which procs have $PATH_REGEX open?

faster than lsof by at least x2 on my box.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
arp -s $(route -n | awk '/^0.0.0.0/ {print $2}') \ $(arp -n | grep `route -n | awk '/^0.0.0.0/ {print $2}'`| awk '{print $3}')
2009-03-25 09:53:10
User: aramosf
Functions: arp awk grep route
Tags: Network Security
2
Up
Down
add static arp entry to default gateway, arp poison protection
Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ps ax | grep <processname> | grep -v grep | awk '{print $1}' | sudo xargs kill -9
2009-03-24 19:52:47
User: copyhacker
Functions: awk grep kill ps sudo xargs
-5
Up
Down
Kill a bunch of processes with the same name
Comments (5) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
rpm -Va | grep -v "\.\.\.\.\.\.\.T"
2009-03-24 19:32:41
User: llama
Functions: grep rpm
Tags: rpm
0
Up
Down
Strip out time difference entries when verifying rpms on x86_64 RHEL systems
Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
lsof -P | grep ':3000'
2009-03-23 18:41:24
User: thisduck
Functions: grep
11
Up
Down
find the process that is using a certain port e.g. port 3000
Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
for i in `find . | grep jar$`; do echo $i; jar tvf $i | grep 'search-string'; done;
2009-03-23 16:18:26
User: thisduck
Functions: echo grep
-3
Up
Down
find a class or file within a number of jar files
Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ps aux | grep 'httpd ' | awk {'print $2'} | xargs kill -9
2009-03-23 16:15:06
User: thisduck
Functions: awk grep kill ps xargs
Tags: kill
-5
Up
Down
kills all processes for a certain program e.g. httpd
Comments (6) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
find . -name *.php | xargs grep -i -n 'TERM'
2009-03-23 14:27:55
User: crashrox
Functions: find grep xargs
-3
Up
Down
Recursive file content search
Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
find . -name "*.EXT" | xargs grep -n "TODO" | wc -l
2009-03-22 18:43:32
User: hardest
Functions: find grep wc xargs
-3
Up
Down
Counts the number of TODOs in files with extension EXT found from the current dir.
Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
grep '' -m X file1 > file2
2009-03-22 04:34:43
User: sardanapalos
Functions: grep
-4
Up
Down
extract a certain number of lines from a file and dump them to another file

It extracts X number of lines from file1 and dumps them to file2.Using grep with the empty string '' extracts the complete lines (i.e. no filtering takes place) and the -m flag indicates how many lines to extract out from the given file. Then using the redirect > operator we send the extracted lines to a new file.

Comments (6) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ls -1 static/images/ | while read line; do echo -n $line' '[; grep -rc $line *|grep -v ".svn"|cut -d":" -f2|grep -vc 0| tr "\n" -d; echo -n ]; echo ; done
2009-03-20 20:33:36
User: psytek
Functions: cut echo grep ls read tr
Tags: unix clean project static
-5
Up
Down
Recursively grep a subdirectory for a list of files

This command will grep the entire directory looking for any files containing the list of files. This is useful for cleaning out your project of old static files that are no longer in use. Also ignores .svn directories for accurate counts. Replace 'static/images/' with the directory containing the files you want to search for.

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
curl -s -u user:password http://twitter.com/statuses/friends_timeline.rss | grep title | sed -ne 's/<\/*title>//gp' | head -n 4 | say -v Bruce
2009-03-20 20:14:13
User: sixtus
Functions: grep head sed
-7
Up
Down
Speak the last 3 tweets on Mac OS

You need curl.. and a Mac of course.

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
vos listvldb | agrep LOCKED -d RWrite | grep RWrite: | awk -F: '{print $2}' | awk '{printf("%s ",$1)} END {printf("\n")}'
2009-03-17 19:55:39
User: mpb
Functions: awk grep
0
Up
Down
Display list of locked AFS volumes (if any)

This command shows if there are any locked AFS volumes.

The output is a list of AFS volume IDs (or nothing if there are none locked).

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
rpm -qa --queryformat '%{installtime} \"%{vendor}\" %{name}-%{version}-%{release} %{installtime:date}\n' | grep "Thu 05 Mar"
2009-03-17 13:38:20
User: mpb
Functions: grep rpm
4
Up
Down
Display a list of RPMs installed on a particular date

Find out which RPMs were installed on a particular date.

These would (naturally) include update RPMs.

This example shows searching for "Thu 05 Mar" (with grep).

Alternatively, pipe it to less so you can search inside less (with less's neat text highlighting of the search term):

rpm -qa --queryformat '%{installtime} \"%{vendor}\" %{name}-%{version}-%{release} %{installtime:date}\n' | less # (this example) search term: Thu 05 Mar

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate