Commands using egrep sorted by votes

Commands using egrep (220)

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tail, with specific pattern colored

but you can't see the colors in that sample output :( Show Sample Output
This is sample output - yours may be different.
```
seq 1111 1122|egrep --color=always $\|12
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
```
-2

tail -f file | egrep --color=always $\|PATTERN

sitaram · 2009-10-15 13:08:30 13
Find all dot files and directories

trying to copy all your dotfiles from one location to another, this may help Show Sample Output
This is sample output - yours may be different.
```
.bash_profile
.bashrc
.ssh
```
-2

ls -a | egrep "^\.\w"

kulor · 2009-11-11 18:19:56 12
search for a pattern (regex) in all text files (ignoring binary files) in a directory tree
This is sample output - yours may be different.
-2

egrep -i "somepattern" `find . -type f -print`

dudleyperkins · 2009-12-02 16:00:46 5
Find errors in your php website
This is sample output - yours may be different.
-2

egrep '(\[error\])+.*(PHP)+' /var/log/apache2/error.log

cicatriz · 2010-07-26 12:42:09 3
Get all links of a website
This is sample output - yours may be different.
-2

lynx -dump http://domaim.com | egrep -o -e 'http://[/0-9a-z.]+html'

yababay · 2010-09-04 17:49:12 3
Get My Public IP Address

Just an alternative :)
This is sample output - yours may be different.
-2

links2 -dump http://checkip.dyndns.com| egrep -m1 -o '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'

lokutus25 · 2010-10-08 10:53:33 5
Get DELL Warranty Information from support.dell.com

The dates in the output are Start Date, End Date, Days Remaining in warranty, respectively. This will only work if you are running it on a dell machine. You can substitute the dmidecode command with a service tag if you are not using a dell. Also, you have to either allow your user to run sudo dmidecode with no password or run this command as root. Show Sample Output
This is sample output - yours may be different.
```
Product Support for Latitude D820

Your Warranty
Next Business Day Support 4/16/2008 4/16/2010 0
```
-2

curl -Ls "http://support.dell.com/support/DPP/Index.aspx?c=us&cs=08W&l=en&s=biz&ServiceTag=$(dmidecode -s system-serial-number)"|egrep -i '>Your Warranty<|>Product Support for'|html2text -style pretty|egrep -v 'Request|View'|perl -pane 's/^(\s+|\})//g;'

din7 · 2011-02-18 22:29:05 3
Find out local DISPLAY number

Not always does Xorg run on :0. For times like those, this script allows you to find out which it is.
This is sample output - yours may be different.
-2

export DISPLAY=$(tr '\000' '\n' < /proc/`pidof Xorg`/cmdline | egrep '^:[0-9]+')

oernii2 · 2012-12-18 07:26:16 6
Get the /dev/disk/by-id fragment for a physical drive

This was tested on Ubuntu 12.04 (Precise) LTS Server. It returns the name of the symlink within /dev/disk/by-id for the physical drive you specify. Change /dev/sda to the one you want, and replace ata- with scsi- or the appropriate type for your drive. I used this to pre-configure grub-pc during a non-interactive install because I had to tell it which disk to install grub on, and physical disks don't have a UUID such as that blkid provides.
This is sample output - yours may be different.
-2

ls -l /dev/disk/by-id | egrep ata-.*`hdparm -i /dev/sda | grep SerialNo | sed 's/.*SerialNo=//' | tr -d "\n"`.*sda$ | sed -e 's/.*ata-/ata-/' -e 's|[ ].*||' | tr -d "\n"

wizonesolutions · 2013-01-07 10:20:25 6

UBNT device

-2

iwlist ath0 scanning |egrep '(ESSID|Signal|Address)'| \sed -e 's/Cell - Address:*//g' -e 's/ESSID://g' \-e 's/Noise level=-//g' -e 's/dBm//g' \-e 's/Quality=*//g' -e 's/Signal level=-//g' \-e 's/"//g'

ene2002 · 2013-05-04 08:48:45 19

Find files and list them with a readable informative output
This is sample output - yours may be different.
-3

find . -type f | sed 's,.*,stat "&" | egrep "File|Modify" | tr "\\n" " " ; echo ,' | sh | sed 's,[^/]*/$.*$. Modify: $....-..-.. ..:..:..$.*,\2 \1,' | sort

pepin · 2010-05-27 22:30:18 3
Show the number of current httpd processes
This is sample output - yours may be different.
-3

netstat -l -p --tcp | egrep -e 'www.*[0-9]{3,4}\/(apache2|httpd)' | awk '{print$7}'

cicatriz · 2010-07-26 12:52:07 5
LIST FILENAMES OF FILES CREATED TODAY IN CURRENT DIRECTORY
This is sample output - yours may be different.
-3

ls -la | grep $(date +%Y-%m-%d) | egrep -v -e '\.{1,2}' | sed "s/.*\:[0-9]\{2\} $.\+$$/\\1/g"

cicatriz · 2010-07-29 14:37:51 3
Regex or

to find occurances of expr1 OR expr2
This is sample output - yours may be different.
-3

egrep '(expr1|expr2)' file

evandrix · 2011-07-14 14:22:11 40
Search all files of type *.php for string 'specialFunction' and output the result in searchResult.txt

Will search recursively and output the searchResult.txt in the same folder you are located.
This is sample output - yours may be different.
-4

find . -name "*.php" | xargs egrep -i -s 'specialFunction' > searchresult.txt

tb323 · 2009-02-23 15:25:49 12
kill all running instances of wine and programs runned by it (exe)

This command kills all wine instances and each EXE application working on a PC. Here is command info: 1) ps ax > processes = save process list to file named "processes" (we save it because we don't wont egrep to be found in the future) 2) cat processes | egrep "*.exe |*exe]" = shows the file "processes" and after greps for each *.exe and *exe] in it 3) | awk '{ print $1 }' > pstokill = saves processes PID's to file "pstokill" using awk filter 4) kill $(cat pstokill) = kills each PID in file pstokill, which is shown by cat program 5) rm processes && rm pstokill = removes temporary files Show Sample Output
This is sample output - yours may be different.
```
(silence if ok; kill usage if there are no EXE/wine programs running)
```
-4

ps ax > processes && cat processes | egrep "*.exe |*exe]" | awk '{ print $1 }' > pstokill && kill $(cat pstokill) && rm processes && rm pstokill

sxiii · 2011-02-26 16:13:58 6
grep: find in files

grep - Search file for character string Search for one or more strings in one or more files. Examples:- grep that myfile.txt Look for the string ``that'' in the file called ``myfile.txt'' and print out each line that matches. egrep -in "this|that" *.dat Extended grep search *.dat files for ``this'' or ``that'' case insensitive (-i) and where found print line number (-n) along with the line contents. Show Sample Output
This is sample output - yours may be different.
```
[root@centos64 Desktop]# egrep -in "127.0.0.1" /etc/hosts
4:127.0.0.1   centos64
5:127.0.0.1   localhost
```
-5

egrep -in "this|that" *.dat

evandrix · 2011-07-06 09:42:26 27
alias to list hidden files of a folder
This is sample output - yours may be different.
-6

alias lh='ls -a | egrep "^\."'

fabs · 2009-03-05 20:36:58 11
send Everyone on your machine some love

This works just like write or wall ... cept one thing the sender is anonymous ... if you really want to drive everyone insane replace echo \"The Matrix has you...\" with cat /dev/urandom nice one to do on April fool's day Show Sample Output
This is sample output - yours may be different.
```
The Matrix has you... (on all writable ttys)
```
-12

w | egrep -v '(load|FROM)' | awk '{print $2}' | sed 's/^/tty/' | awk '{print "echo \"The Matrix has you...\" >> /dev/" $1}' | bash

copremesis · 2009-04-29 22:04:56 10
Remove "ssh host" from known hosts file.

I have this as a file called deletekey in my ~/bin. Makes life a little easier.
This is sample output - yours may be different.
-13

echo "${1}" | egrep '^[[:digit:]]*$' ; if [ "$?" -eq 0 ] ; then sed -i "${1}"d $HOME/.ssh/known_hosts ; else printf "\tYou must enter a number!\n\n" ; exit 1 ; fi

DaveQB · 2010-07-11 23:09:11 3
‹ First < 7 8 9

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Randomize lines in a file

shuf is in the coreutils package

Skype conversation logs to IRC-format logs

Print a row of 50 hyphens

Perl is installed by default on most modern OS when jot is not.

List your largest installed packages.

Calculates the size on disk for each package installed on the filesystem (or removed but not purged). This is missing the $ | sort -rn which would put the biggest packges on top. That was purposely left out as the command is slightly on the slow side Also you may need to run this as root as some files can only be checked by du if you can read them ;)

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Watch how many tcp connections there are per state every two seconds.

Debug a remote php application (behind firewall) using ssh tunnel for XDEBUG port 9000

If you need to xdebug a remote php application, which is behind a firewall, and you have an ssh daemon running on that machine. you can redirect port 9000 on that machine over to your local machine from which you run your xdebug client (I am using phpStorm) So, run this command on your local machine and start your local xdebug client, to start debugging. more info: http://code.google.com/p/spectator/wiki/Installing

Delete a file/directory walking subdirectories (bash4 or zsh)

See non printable caracters like tabulations, CRLF, LF line terminators ( colored )

For fancier and cleaner output, try the following snippet : $ showendlines(){ while read i; do od --address-radix=n --width=$(wc -c

open path with your default program (on Linux/*BSD)

open [path] in the default program, regardless of which Desktop Environment you use (KDE, GNOME, etc.) Works on all "freedesktop.org" compatible desktop environments

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Commands using egrep (220)

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