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commandlinefu.com is the place to record those command-line gems that you return to again and again.

Delete that bloated snippets file you've been using and share your personal repository with the world. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Terminal - All commands - 12,420 results
mount -t proc{,,}
2009-02-26 12:53:58
User: alexfoo
Functions: mount

Run this in / in a chroot to get your own proc there.

2009-02-26 12:52:45
User: alexfoo

Might match "ping" and then run it.

sudo ufw allow proto tcp from to any port 80
ls -t1 | head -n1
cat /etc/*-release
2009-02-26 08:22:01
User: sudopeople
Functions: cat

Works for most distributions, tested on Ubuntu, Fedora, CentOS, Gentoo, SUSE, RedHat.

Debian and Slackware:

cat /etc/*version
fold -s <filename>
2009-02-26 05:06:51
User: neutral
Functions: fold

fold wraps text at 80 characters wide, and with the -s flag, only causes wrapping to occur between words rather than through them.

:mksession! <filename>
2009-02-26 05:03:07
User: neutral
Tags: vim

Creates a full snapshot of your current vim session, including tabs, open buffers, cursor positions, everything. Can be resumed with vim -S . Useful for those times when you HAVE to close vim, but you don't want to lose all your hard-opened buffers and windows. The ! will cause vim to overwrite the file if it already exists. It is not necessary, but useful if you frequently save to the same file (like session.vim or something).

for f in $(ls -d /base/*); do ln -s $f /target; done && ls -al /target
2009-02-26 04:48:19
Functions: ln ls

Symlinks all files in the base directory to the target directory then lists all of the created symlinks.

alias wordpress='mkdir wordpress && cd wordpress && wget http://wordpress.org/latest.tar.gz && tar -xvzf latest.tar.gz && mv wordpress/* . && rm -rf latest.tar.gz wordpress && cp wp-config-sample.php wp-config.php'
tar cpfP - $(find <somedir> -type f -name *.png) | ssh [email protected] | tar xpfP -
2009-02-26 00:01:30
User: raphink
Functions: find ssh tar


* Adjust the find command to your own filters.

* The -P flag forces to keep absolute paths in the tarball, so that you can be sure that the exact same file hierarchy will be created on the second machine.

mii-tool [if]
eject -T [cdrom_device]
2009-02-25 23:53:03
User: raphink
Functions: eject
Tags: device

Opens or closes the cdrom device.

date --iso
2009-02-25 23:50:40
User: raphink
Functions: date

Useful to archive files once a day:

cp file file.$(date --iso)
^Z then bg
^A ?
2009-02-25 23:42:33
User: raphink
Tags: screen

Displays a list of all the basic keyboard shortcuts in screen.

:split <file>
2009-02-25 23:41:22
User: raphink

You can then switch from a file to another with ^W^W

dmidecode | grep -i prod
2009-02-25 23:05:17
User: rockon
Functions: grep

This command gives a model information of a computer. Also useful in determining the host is a VM machine or actual physical machine.

IPADDR=`ifconfig eth0 | grep -i inet | awk -F: '{print $2}'| awk '{print $1}'`
2009-02-25 22:58:19
User: rockon
Functions: awk grep

Useful in scripts while you just need an IP address in a variable.

rm -rf `ls | head -5000`
2009-02-25 22:52:23
User: rockon
Functions: head rm

Deletes thousands of files at one go, I'm not able to recall the exact # of files that rm can delete at one go(apprx. around 7000.)

blockdev --rereadpt /dev/sda
count=`wc -l file | cut -d ' ' -f1`
bash -x ./post_to_commandlinefu.sh
ctrl + \
2009-02-25 18:52:57
User: nottings

useful for loops like for i in $(cat list_of_servers); do ssh -q $i hostname; done

if there is an unreachable server, you can just press ctrl + \ to skip that server and continue on with the loop

ls /sys/bus/scsi/devices
2009-02-25 18:49:27
Functions: ls

This will show all physically connected SATA (and SCSI) drives on your system. This is particularly useful when troubleshooting hard disks.... or when a mount point seems to be missing.

hdiutil makehybrid -o CDname.iso /Way/to/folder ; hdiutil burn CDname.iso
2009-02-25 17:46:59
User: vranx
Tags: Os X

Create an ISO Image from a folder and burn it to CD (Os X)