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Commands using sudo from sorted by
Terminal - Commands using sudo - 423 results
ran=$(head /dev/urandom | md5sum); MAC=00:07:${ran:0:2}:${ran:3:2}:${ran:5:2}:${ran:7:2}; sudo ifconfig wlan0 down hw ether $MAC; sudo ifconfig wlan0 up; echo ifconfig wlan0:0
2009-07-16 16:21:44
User: workingsmart
Functions: echo head ifconfig sudo

Next time you are leaching off of someone else's wifi use this command before you start your bittorrent ...for legitimate files only of course.

It creates a hexidecimal string using md5sum from the first few lines of /dev/urandom and splices it into the proper MAC address format. Then it changes your MAC and resets your wireless (wlan0:0).

sudo nmap -sS -D
2009-07-14 17:37:34
User: sedcommand
Functions: sudo

Scan for open ports on the target device/computer ( while setting up a decoy address ( This will show the decoy ip address instead of your ip in targets security logs. Decoy address needs to be alive. Check the targets security log at /var/log/secure to make sure it worked.

/originalInstall/gem list | tr -d '(),' | xargs -L 1 sudo ./gemInst.sh
2009-07-09 21:46:06
User: snakerdlk
Functions: sudo tr xargs
Tags: bash Linux



for i in $@; do

if [ "$1" != "$i" ]


echo /newInstall/gem install $1 -v=\"$i\"

/newInstall/gem install $1 -v="$i"

if [ "$?" != "0" ]


echo -e "\n\nGEM INSTALL ERROR: $1\n\n"

echo "$1" > gemInst.err




sudo port installed | grep -v 'active\|The' | xargs sudo port uninstall
sudo ipfw pipe 1 config bw 50KByte/s;sudo ipfw add 1 pipe 1 src-port 80
2009-07-02 23:17:49
User: miccaman
Functions: sudo
Tags: Os X pipe

sudo ipfw pipe 1 config bw 50KByte/s

Set the bandwidth (bw) limit to any number you want. For example you could have a 15kb pipe for X application and then a 100kb pipe for another application and attach things to those pipes. If a port isn’t attached to a pipe, it runs at full speed. Change the number (in this case 1) to a different number for a different pipe.

The next step is to attach your port.

sudo ipfw add 1 pipe 1 src-port 80

In this case anything on port 80 (http) will be set to a limit of 50Kbyte/s. If you want to attach a second port to this pipe, repeat the command but change the port number at the end.

src : http://www.mactricksandtips.com/2008/12/throttling-bandwidth-on-a-mac.html

sudo /Applications/Utilities/Adobe\ Utilities.localized/Adobe\ Updater5/Adobe\ Updater.app/Contents/MacOS/Adobe\ Updater
2009-06-25 08:07:47
User: miccaman
Functions: sudo
Tags: Os X

adobe updater keeps popping up. (normal update fails, probably due to insufficient rights)

(src: http://aricsblog.blogspot.com/2007/12/adobe-updater-crashes-on-mac-os-x-and.html)

sudo sed 's/\o0/\n/g' "/proc/$(pidof -x firefox)/environ" ;# replace firefox
sudo pmset -a hibernatemode 1
2009-06-20 22:52:10
Functions: sudo

sudo pmset -a hibernatemode 1 sets hiberate on.

sudo pmset -a hibernatemode 0 sets hibernate off.

from the pmset man page:

0001 (bit 0) enables hibernation; causes OS X to write memory state to

hibernation image at sleep time. On wake (without bit 1 set) OS X will

resume from the hibernation image. Bit 0 set (without bit 1 set) causes

OS X to write memory state and immediately hibernate at sleep time.

I often change my MacBook's sleep state. So I created a function for bash to make it a little easier.


hibernate (on | off)

"hibernate on" will set your laptop to hibernate if the lid is closed.

"hibernate off" will set your laptop to sleep if the lid is closed.

### note : "proper" indentation isn't preserved on the website

function hibernate()


case "${1}" in


sudo pmset -a hibernatemode 1

echo Hibernate mode on.



sudo pmset -a hibernatemode 0

echo Hiberate mode off.



echo "I'm sorry Dave, but I can't do that."




To make things easier, add the proper line in your /etc/sudoers file so that your user may invoke pmset without a password. Here's how mine looks:

bwayne luna = NOPASSWD: /usr/bin/pmset

Don't forget that you must edit sudoers with `sudo visudo` from Terminal.app, and not by another text editor.

Sorry this is so Mac OS specific.

dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d' | xargs sudo apt-get -y purge
2009-06-19 10:11:00
User: plasticdoc
Functions: sed sudo xargs

will purge:

only installed apps: /^ii/!d

avoiding current kernel stuff: /'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d

using app names: s/^[^ ]* [^ ]* \([^ ]*\).*/\1/

avoiding stuff without a version number: /[0-9]/!d

sudo ifconfig eth0 hw ether 00:01:02:03:04:05
2009-06-04 09:02:35
User: momitov
Functions: ifconfig sudo

eth0 = the name of the interface

00:01:02:03:04:05 = the new mac adresse

the same thing for wireless card $ sudo iwconfig eth1 hw ether 00:01:02:03:04:05

sudo dd if=/dev/zero of=/swapfile bs=1024 count=1024000;sudo mkswap /swapfile; sudo swapon /swapfile
2009-05-27 21:10:50
User: dcabanis
Functions: dd mkswap sudo swapon

Create a temporary file that acts as swap space. In this example it's a 1GB file at the root of the file system. This additional capacity is added to the existing swap space.

sudo dmidecode -t 5,16
sudo pmset schedule sleep "08/31/2009 00:00:00"
2009-05-14 09:31:32
User: hobzcalvin
Functions: sleep sudo

Schedule your Mac to sleep at any future time.

Also wake, poweron, shutdown, wakeorpoweron. Or repeating with

sudo pmset repeat wakeorpoweron MTWRFSU 7:00:00

Query with

pmset -g sched

Lots more at http://www.macenterprise.org/articles/powermanagementandschedulingviathecommandline

function ec() { ec_var="`pwd`" && cd /etc/ && sudo bzr commit -m "$@" && cd $ec_var; }
2009-05-14 04:34:26
Functions: cd sudo

ec commits changes to etckeeper

must have etckeeper installed with bzr to use this

place inside bashrc

can be used from any directory to commit changes

sudo shred -zn10 /dev/sda
2009-04-30 13:02:43
User: dcabanis
Functions: shred sudo

Shred can be used to shred a given partition or an complete disk. This should insure that not data is left on your disk

sudo vol_id -u /dev/sda1
2009-04-30 01:40:58
User: agentk
Functions: sudo

Shows the UUID of a filesystem or partition that can be used in kernel root options and in fstab.

Run it without the -u option to generate more information. eg:

~/ sudo vol_id /dev/sda2








sudo pmset -a hibernatemode 1
sudo installer -pkg /Volumes/someapp/someapp.mpkg -target /
2009-04-28 19:43:56
User: sud0er
Functions: sudo
Tags: osx

Installing most OSX apps is just a matter of dropping it in /Applications, either GUI-wise or with cp -r. However, many packages are distributed in "mpkg" format, and those have to be installed with an installer. If you don't want to go to the trouble of firing up VNC to install an mpkg, you can use the "installer" command.

This will install an application from a .mpkg it to /Applications system-wide. To install a program for just one user, replace "-target /" with "-target username".

sudo aptitude purge `dpkg --get-selections | grep deinstall | awk '{print $1}'`
sudo apt-get remove --purge `dpkg -l | awk '{print $2}' | grep gnome` && apt-get autoremove
2009-04-28 10:34:42
User: kelevra
Functions: awk grep sudo
Tags: awk apt-get dpkg

Useful for removes a package and its depends, for example to remove the gnome desktop environment, also configuration files will be removed, you should be carefully and sure that you want to do this.

for i in /sys/class/net/*; do e=`basename $i`; echo "# $e"; sudo ethtool $e | grep -E "Link|Speed" ; done
2009-04-25 14:32:08
User: hank
Functions: echo grep sudo
Tags: Network Linux

Basically an improvement on an earlier ethtool command line.

sudo cat /dev/mem > /dev/dsp
for i in sys dev proc; do sudo mount --bind /$i /mnt/xxx/$i; done
2009-04-20 16:52:14
User: amosshapira
Functions: mount sudo
Tags: bash mount chroot

The command is useful when, e.g., booting an existing system with a rescue or installation CD where you need to chroot into the hard-disk and be able to do stuff which accesses kernel info (e.g. when installing Ubuntu desktop with LVM2 you need to mount and chroot the hard disk from a shell window in order to install packages and run initramfs inside chroot).

The command assumes that /mnt/xxx is where the chroot'ed environment's root file system on the hard disk is mounted.

sudo dpkg-reconfigure tzdata
2009-04-20 02:08:23
User: hank
Functions: sudo
Tags: Ubuntu time

Reconfigures time zone in Ubuntu, which I cannot figure out how to do through the GUI. Worked like a charm to set my time zone to CEST from EDT.

sudo cat /dev/vcs1 | fold -w 80
2009-04-15 08:49:48
User: animoid
Functions: cat fold sudo

This will view the console and assumes the screen is 80 characters wide.

Use /dev/vcs2 for the next virtual console.. etc.