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Terminal - All commands - 11,584 results
slocate filename/dirname
2009-08-29 03:28:08
User: unixbhaskar
Functions: slocate
-3

After you install slocate ,the first thing you have to do with it to initialise the database by issuing a command " slocate -u" . And then onwards just give the filename or dirname as a argument to the slocate command will reveal the files/dirs location in the system along with path.Moreover over it's an securely way of looking into the file system.

file -L <library> | grep -q '64-bit' && echo 'library is 64 bit' || echo 'library is 32 bit'
2010-03-07 06:31:35
User: infinull
Functions: echo file grep
Tags: bash
-3

file displays a files type

the -L flag means follow sym-links (as libraries are often sym-linked to another this behavior is likely preferred)

more complex behavior (*two* grep commands!) could be used to determine if the file is or is not a shared library.

vipw
2009-08-29 03:46:42
User: unixbhaskar
Tags: Security shell
-3

Now a bit of explanation required for this command.Once you type the command it opens up an vi editor with an temporary file enlisting the password file information .So if you make an change it will not reflected in the passwd file until you save the file.The reason behind using this command over other way to view the password file in network environment is that it locks the password file when you start working with it.So no one can temper with it during that period.Once you are done(means you save the tmp file) ,it will release the lock associated with it.I think it's a better mechanism to view the sensitive data like passwd file.Never ever use other tool like cat, nano or any other means.

<alt+50>-
2010-01-07 15:32:47
User: kobayashison
-3

In bash, by pressing ALT+n and then a character x, x will be printed n times

I know is not the same as the original command, but is correlated.

function ends_in_y() { if [ `date +%A | sed -e 's/\(^.*\)\(.$\)/\2/'` == "y" ]; then echo 1; else echo 0; fi }
2010-04-06 20:14:34
User: allrightname
Functions: echo sed
-3

For those days when you need to know if something is happening because the day ends in "y".

vigr
2009-08-29 03:56:07
User: unixbhaskar
Tags: Security shell
-3

If you follow my previous posting regarding "vipw" then no explanation required.The same method goes behind this command also.It will open an tmp file in vi editor to give you the enlisting to edit the group file.And most importantly to attach a lock with it.Once you are done ,the lock is released and the changed reflected to the original file.So you can securely edit the group file over the network without the fear of being tampered .

mplayer "$(find . -maxdepth 2 -mindepth 2 -type d | grep -v '^.$' | sort -R | head -n1)"/*
2011-03-15 01:19:59
User: jedahan
Tags: music random
-3

Good if you have your music like Artist/(Year) Album/Song

visudo
2009-08-29 04:06:11
User: unixbhaskar
Tags: Security shell
-3

If you follow my other posting regarding "vipw" and "vigr' then no explanation required.It has done the same thing as did with those two command.Open the /etc/sudoers file and attach a lock with it. Once you are done with it ,the lock gets released and the changes reflected to the original file.It will open a tmp file in vi editor to give you the chance to edit the sudoers file securely.visudo parses the sudoers file after the edit and will not save the changes if there is a syntax error. Upon finding an error, visudo will print a message stating the line number(s) where the error occurred and the user will receive the "What now?" prompt. At this point the user may enter "e" to re-edit the sudoers file, "x" to exit without saving the changes, or "Q" to quit and save changes. The "Q" option should be used with extreme care because if visudo believes there to be a parse error, so will sudo and no one will be able to sudo again until the error is fixed. If "e" is typed to edit the sudoers file after a parse error has been detected, the cursor will be placed on the line where the error occurred (if the editor supports this feature).

PS: Although I have had experienced myself and few people shown to me that it behaves badly in some distribution ,noteably SLES.But the problem can be rectified with little caution.

find . -name *DS_Store -exec echo rm {} \;
2009-03-11 11:30:55
User: dgomes
Functions: echo find rm
-3

This is quite usefull in Unix system share via NFS or AppleTalk with OSX clients that like to populate your filesystem with these pesky files

ssh user@remotehost [anycommand](i.e uptime,w)
2009-08-29 04:27:37
User: unixbhaskar
Functions: ssh
Tags: ssh shell
-3

Once it is connected to the remote server by that ssh protocol,the mentioned command will start working on that server.

sudo ping -f -c 999 -s 4500 target.com
2010-07-11 16:38:44
User: gunslinger_
Functions: ping sudo
Tags: ping
-3

sending packet by ping

if sending more high packet root needed...

find ~/.mozilla -name '*.sqlite' -exec sqlite3 {} VACUUM \;
/ls
dd if=/dev/zero of=/dev/hda bs=16M
2009-11-09 00:13:35
User: Clopnixus
Functions: dd
-3

If you leave out the block size it defaults to 512 bytes. I set it to 16 Megabytes and it was much faster...

Taskkill /?
-3

Taskkill: As the name of the utility ?taskkill? suggests that it is simply used to see the running processes and to kill one or more processes either by using its PID i.e. ProcessID or by using its Image name i.e. by which it is present in system and being executed. We can also filter the results on the basis of user name, PID, image name, CPU time, memory usage etc at the time of killing or terminating a process.

Syntax:

taskkill [/s [/u [\] [/p []]]] {[/fi ] [...] [/pid /im ]} [/f] [/t]

Parameters description:

/s :- To provide IP specification or name of the remote computer; if not provided local computer is considered. Do not use backslashes in the value of the parameter.

/u \ :- To provide UserName or Domain\UserName under whose permission command should execute. If not provided then command run under the permission of person who is logged on. Option /u can be used only if /s is specified.

/p :- For the password of that user account which is provided with /u parameter. Password is prompted in case this field is omitted.

/fi :- To apply filter to select a set of tasks. Wildcard character (*) can be used for specifying all tasks or image names. Filter names are provided after parameter description.

/pid >ProcessID> :- For specifying PID of the process to be killed.

/im :- For providing image name of the process to be terminated. Also Wildcard character (*) can be used to specify all image names.

/t :- To terminate the whole tree of the process including all child processes started by it.

/f :- For forceful termination of process. It is not omitted in case of remote process as they are terminated forcefully in default.

Filters description:

Filters are provided to filter the result. This filtering is based on some Filter names which are checked with some relational operators. You will observe that the filter names are the column names which comes in task manager.

Filter Name Valid Operators Valid Values

STATUS eq,ne RUNNINGNOT RESPONDINGUNKNOWN

IMAGENAME eq, ne Name of image

PID eq, ne, gt, lt, ge, le ProcessID number

SESSION eq, ne, gt, lt, ge, le Session number

CPUTIME eq, ne, gt, lt, ge, le CPU time in the format HH:MM:SS, where MM and SS are between 0 and 59 and HH is any unsigned number

MEMUSAGE eq, ne, gt, lt, ge, le Memory usage(in KB)

USERNAME eq, ne Any valid user name (User or Domain\User)

SERVICES eq, ne Service name

WINDOWTITLE eq, ne Window title

MODULES eq, ne DLL name

where eq, ne, gt, lt, ge & le are meant for equal to, not equal to, greater than, less than, greater than equal to and less than equal to respectively.

Points to be noted:

In case of remote process WINDOWTITLE and STATUS filters are not supported.

Wildcard (*) character is accepted for /im option only when filter is applied.

Not necessary that /f is specified in case of remote process termination as in default that is terminated forcefully.

Don?t specify computer name to HOSTNAME filter as it will result in a shutdown and all processes are stopped.

For specifying ProcessID (PID) tasklist command can be used.

Examples:

To terminate a process with PID 3276 use parameter /pid.

?taskkill /pid 3276

To terminate more than one process with pid as 2001, 2224, 4083.

?taskkill /pid 2001 /pid 2224 /pid 4083

To terminate a process with its image name like wmplayer.exe for Windows Media Player use /im parameter.

?taskkill /im wmplayer.exe

To terminate a process and all its child process i.e. to end process tree in task manager use /t parameter. ?taskkill /f /im explorer.exe /t

To terminate all those processes which have PID greater than or equal to 1500 without considering their image names use filter ge with wildcard character.

?taskkill /f /fi ?PID ge 1500? /im *

To terminate the process tree with PID 2521 which is started by account name admin.

?taskkill /pid 2521 /t /fi ?USERNAME eq admin?

To terminate all process beginning with note on a remote system named serverpc under user name ?administrator? having its password as ?qu@dc()r3?.

?taskkill /s serverpc /u administrator /p qu@dc()r3 /fi ?IMAGENAME eq note*? /im *

To terminate a process with its windows title as ?paint?

?taskkill /f /fi ?WINDOWTITLE eq paint?

Source: http://unlock-windows.blogspot.com/2008/12/taskkill-command-line-utility.html

python -c "import SimpleHTTPServer;SimpleHTTPServer.test()"
last
2009-08-29 12:08:30
User: unixbhaskar
Functions: last
Tags: login shell
-3

This command will reveal login has been made to the system as well as when the reboot occurs. It uses a file called /var/log/wtmp,which captures all the information about the successful login and reboot information. It has many switch ,by which you can get an idea when people login how long they stay.

mount |tail -1 | less -p "/dev/[^ ]*"
ln -s /destinationTarget /sourceTarget/newFolder
2009-03-12 01:56:34
User: topgun553
Functions: ln
-3

if you wanted to create a new folder called "red" that was a symbolic link from /home/music/ to /home/hobbies/art then you would type:

ln -s /home/hobbies/art /home/music/red

gpg --refresh-keys
wb(){ for i in $(wget -O- -U "" "http://wallbase.cc/random/23/eqeq/1920x1080/0/" --quiet|grep wallpaper/|grep -oe 'http://wallbase.[^"]*'); do if (( n > "$1" )); then break;fi;let n++;wget $(wget -O- -U "" $i --quiet|grep -oe 'http://[^"]*\.jpg');done;}
aptitude search \~ilinux-image
gocr -i ~/Screenshot.png
2013-02-28 07:38:13
User: totti
-3

Image to text converter.

Convert your scanned book in image format like .png, .jpg into editable text format.

OCR ==> Optical Code Reader

mate - `find . -name 'filename'`