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Commands using grep from sorted by
Terminal - Commands using grep - 1,505 results
find . -name "*.jar" | xargs -tn1 jar tvf | grep --color "SearchTerm"
2009-02-16 17:18:36
User: unixmonkey1092
Functions: find grep xargs
3
Up
Down
Search inside a folder of jar/zip files

Great for finding which jar some pesky class is hiding in!

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
for I in `echo "show databases;" | mysql | grep -v Database`; do mysqldump $I > "$I.sql"; done
2009-02-16 16:41:05
User: ruedu
Functions: grep
9
Up
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Backup all MySQL Databases to individual files

Backups all MySQL databases to individual files. Can be put into a script that grabs current date so you have per day backups.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ip route | grep default | awk '{print $3}'
2009-02-16 16:29:03
User: ruedu
Functions: awk grep route
1
Up
Down
Get your default route

This gets you your default route programatically, useful for scripts

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LC_ALL=C svn info | grep Revision | awk '{print $2}'
2009-02-16 14:53:52
User: chickenkiller
Functions: awk grep info
-2
Up
Down
Outputs current folder svn revision

This is the simple revision number on stdout, that can be fed to any useful/fun script of yours. Setting LC_ALL is useful if you use another locale, in which case "Revision" is translated and cannot be found. I use this with doxygen to insert my source files revisions into the doc. An example in Doxyfile:

FILE_VERSION_FILTER = "function svn_filter { LC_ALL=C svn info $1 | grep Revision | awk '{print $2}'; }; svn_filter"

Share your ideas about what to do with the revision number !

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
iptables -L -n --line-numbers | grep xx.xx.xx.xx
2009-02-16 13:38:05
User: nullrouter
Functions: grep iptables
1
Up
Down
Check for Firewall Blockage.

This is just one method of checking to see if an IP is blocked via IP tables or CSF. Simple and to the point. Replace xx.xx.xx.xx with the IP you wish to check.

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
for i in $(svn st | grep "?" | awk '{print $2}'); do svn add $i; done;
2009-02-16 11:16:41
User: raz
Functions: awk grep
3
Up
Down
Add all files not under subversion control
Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
find . -type f -name '*.html' -exec grep -H HACKED {} \; > hacklog.txt
2009-02-16 08:57:25
User: nullrouter
Functions: find grep
0
Up
Down
Locate Hacked Files and Dump.

This will check all .HTML file contents for the word "Hacked" and dump it to hacklog.txt. This is great for located all those files affected by nasty Joomla exploits. Change the .HTML to any other extension you wish to check, and of course the word "HACKED" for other searches.

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netstat -anl | grep :80 | awk '{print $5}' | cut -d ":" -f 1 | uniq -c | sort -n | grep -c IPHERE
2009-02-16 08:54:08
User: nullrouter
Functions: awk cut grep netstat sort uniq
3
Up
Down
Who has the most Apache connections.

This will tell you who has the most Apache connections by IP (replace IPHERE with the actual IP you wish to check). Or if you wish, remove | grep -c IPHERE for the full list.

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
netstat -pant 2> /dev/null | grep SYN_ | awk '{print $5;}' | cut -d: -f1 | sort | uniq -c | sort -n | tail -20
2009-02-16 08:49:38
User: unixmonkey982
Functions: awk cut grep netstat sort tail uniq
3
Up
Down
List top 20 IP from which TCP connection is in SYN_RECV state

List top 20 IP from which TCP connection is in SYN_RECV state.

Useful on web servers to detect a syn flood attack.

Replace SYN_ with ESTA to find established connections

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
find . -type f -exec grep -l pattern {} \; | xargs vi +/pattern
2009-02-16 08:39:39
User: unixmonkey982
Functions: find grep vi xargs
0
Up
Down
find all files containing a pattern, open them using vi and place cursor to the first match, use 'n' and ':n' to navigate
Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
find . -type f -exec grep -l XXX {} \;|tee /tmp/fileschanged|xargs perl -pi.bak -e 's/XXX/YYY/g'
2009-02-16 02:55:23
User: drossman
Functions: find grep perl tee xargs
6
Up
Down
Change string in many files at once and more.

Find all files that contain string XXX in them, change the string from XXX to YYY, make a backup copy of the file and save a list of files changed in /tmp/fileschanged.

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ls -F | grep '\''\*'\'' | sed '\''s/\*$//'\
2009-02-16 01:16:49
User: int19h
Functions: grep ls sed
-4
Up
Down
List all executable files in the current directory
Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
strings /dev/urandom | grep -o '[[:alnum:]]' | head -n 30 | tr -d '\n'; echo
2009-02-16 00:39:28
User: jbcurtis
Functions: grep head strings tr
43
Up
Down
Generate a random password 30 characters long

Find random strings within /dev/urandom. Using grep filter to just Alphanumeric characters, and then print the first 30 and remove all the line feeds.

Show sample output | Comments (10) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
dd bs=1 count=32 if=/dev/random 2> /dev/null | md5 | grep -o '\w*'
2009-02-15 23:22:46
User: neW1
Functions: dd grep
-5
Up
Down
Generate random password
Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ls -R | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/ /' -e 's/-/|/'
2009-02-15 20:43:21
User: unixmonkey842
Functions: grep ls sed
50
Up
Down
Graphical tree of sub-directories

Prints a graphical directory tree from your current directory

Show sample output | Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
du -hs * | grep '^[0-9,]*[MG]' | sort -rn
2009-02-15 17:47:59
User: orie
Functions: du grep sort
5
Up
Down
Show sorted list of files with sizes more than 1MB in the current dir

Taken from here: http://linsovet.com/directory-usage-size-sorted-list

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
dpkg --list '*linux*' | grep '^ii'
2009-02-13 17:05:37
User: piyo
Functions: grep
1
Up
Down
Show one line summaries of all DEB packages installed on Ubuntu based on pattern search

I sometimes want to know what packages are installed on my Ubuntu system. I still haven't figured out how to use aptitude effectively, so this is the next best thing. This allows finding by name.

The grep '^ii' limits the display to only installed packages. If this is not specified, then it includes listing of non-installed packages as well.

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
find . -type f -print | xargs grep foo
2009-02-13 12:22:53
User: syndrael
Functions: find grep xargs
6
Up
Down
Find 'foo' string inside files
Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
curl -s http://myip.dk | grep '<title>' | sed -e 's/<[^>]*>//g'
2009-02-13 01:44:12
User: uzi
Functions: grep sed
3
Up
Down
display ip address

add this alias in .bashrc to fast check the ip address of your modem router

alias myip="curl -s http://myip.dk | grep '' | sed -e 's/]*>//g'"

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
nmap -sT -p 80 -oG - 192.168.1.* | grep open
2009-02-11 17:47:27
User: bendavis78
Functions: grep
18
Up
Down
Get list of servers with a specific port open

Change the -p argument for the port number. See "man nmap" for different ways to specify address ranges.

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
svn st | grep /main/java | awk '{print $2}' | xargs echo | xargs svn ci -m "my comment here"
2009-02-11 16:31:05
User: Antoine
Functions: awk echo grep xargs
-2
Up
Down
Commit all the changes in your java code
Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
FAIL2BAN=`ps ax | grep fail2ban | grep -v grep | awk {'print $1'}` && if [ -n "$FAIL2BAN" ]; then printf "\n[INFO] Fail2Ban is running and the PID is %s\n\n" $FAIL2BAN; else printf "\n [INFO] Fail2Ban is not running\n\n"; fi
2009-02-11 04:36:49
User: fmdlc
Functions: awk grep printf
-6
Up
Down
Check if Fail2Ban is Running

Check if Fail2Ban is running on the system and alert it with a message in the terminal

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
svn st | grep "^\?" | awk "{print \$2}" | xargs rm -rf
2009-02-10 21:15:23
User: l33tminion
Functions: awk grep rm xargs
2
Up
Down
delete unversioned files in a checkout from svn
Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ps aux | grep [h]ttpd
2009-02-10 02:59:20
User: abcde
Functions: grep ps
9
Up
Down
Exclude grep from your grepped output of ps (alias included in description)

Surround the first letter of what you are grepping with square brackets and you won't have to spawn a second instance of grep -v. You could also use an alias like this (albeit with sed):

alias psgrep='ps aux | grep $(echo $1 | sed "s/^\(.\)/[\1]/g")'

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ls -R | grep : | sed -e '\''s/:$//'\'' -e '\''s/[^-][^\/]*\//--/g'\'' -e '\''s/^/ /'\'' -e '\''s/-/|/'\''
2009-02-09 22:32:01
User: scw
Functions: grep ls sed
-3
Up
Down
Display directory hierarchy listing as a tree

Shows the current directory and those below it in a simple tree structure. Recommended use:

alias lt='$command_above'

Comments (5) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate