All commands sorted by votes

All commands (14,187)

sorted by

To list all files in your home directory

It will list all files in your home directory even if your current directory is not home directory Show Sample Output
This is sample output - yours may be different.
```
Chapt01
Chapt02
sum.sh
```
-18

ls ~

harish · 2010-09-12 10:45:01 6
listar arquivos com permiss?o de acesso
This is sample output - yours may be different.
-18

ls -l

rafahead · 2010-11-18 14:54:16 9
alias vi to emacs

add (server-start) in .emacs
This is sample output - yours may be different.
-18

alias vi='emacsclient -n'

freestyler · 2009-07-29 06:18:40 5
show current directory
This is sample output - yours may be different.
-19

explorer .

sharfah · 2009-09-09 15:27:27 4
Eject the CD Rom Device

This open the cd rom device and close it in a loop
This is sample output - yours may be different.
-19

while true; do eject /dev/cdrom && eject -t /dev/cdrom; done

fmdlc · 2009-02-11 04:41:19 15
alias source .bashrc and nano .bashrc

alias for editing .bashrc and sourcing it with a quick command, very useful for quickly adding and modifying alias' and functions in bashrc, create lots of alias from commandlinefu very quickly, use nano vim or any other edit if you want, very useful if you have a barcode scanner and you want to run commands quickly with barcodes Show Sample Output
This is sample output - yours may be different.
```
usage:
$ nbrc
edit .bashrc
press ctrl-x,y,enter
$ sbrc
```
-19

alias sbrc="source ~/.bashrc" && alias nbrc="nano ~/.bashrc"

professoralex · 2009-05-13 02:41:37 11
create any empty file in the current path
This is sample output - yours may be different.
-19

touch <filename>

unixevangelist · 2009-02-14 17:46:07 11
mosh

ln Show Sample Output
This is sample output - yours may be different.
```
ln
```
-20

ln

zshtom · 2010-07-30 10:07:29 20
Ultra shortcut for ssh root@

When you have to manage lot of servers, it's boring to type ssh root@myhost for each connection. Now you can type juste "s someting" and you are connected. You can too add bash_completion script to complet with tab the name of your servers. This will be the next tips from me ;) Show Sample Output
This is sample output - yours may be different.
```
user@localhost:~$ s myhost
Last login: Mon May  4 15:16:18 2009 from 10.40.29.72
[root@myhost ~]#
```
-20

alias s='ssh -l root'

GouNiNi · 2009-05-07 15:57:12 11
Checks for Debug HTTP Verbs in IIS settings
This is sample output - yours may be different.
-20

type C:\WINNT\system32\inetsrv\MetaBase.xml | find "DEBUG"

chrisclymer · 2009-02-20 20:22:11 4
Reboot

Reboot
This is sample output - yours may be different.
-21

shutdown now -r

techie · 2013-04-05 15:28:55 13
move you up one directory quickly
This is sample output - yours may be different.
-21

alias ..='cd ..'

kev · 2011-10-28 10:12:57 11
ps- ef | grep pmon
This is sample output - yours may be different.
-22

this command is to see oracle instance process on linux server

kirakast · 2009-02-20 03:40:29 36
move you up one directory quickly

Use ZSH instead of bash, typing .. will move you up one directory, without the need to alias it.
This is sample output - yours may be different.
-23

yum install zsh

netaxiz · 2012-04-02 12:53:30 5
Checks for custom error pages in IIS configuration
This is sample output - yours may be different.
-23

type C:\WINNT\system32\inetsrv\MetaBase.xml | find "400" | find "CustomError"

chrisclymer · 2009-02-20 20:21:12 5
See what date Symantec definitions were last updated on a WIndows system
This is sample output - yours may be different.
-23

type "C:\Program Files\Common Files\Symantec Shared\VirusDefs\definfo.dat"

chrisclymer · 2009-02-20 20:29:22 6
Empty a file
This is sample output - yours may be different.
-23

echo "" > filr.txt

kalikid021 · 2012-08-23 19:31:51 8
creates balls
This is sample output - yours may be different.
-24

touch balls

k1piee · 2009-02-20 19:56:59 11
ls short hand
This is sample output - yours may be different.
-24

l

unixmonkey12006 · 2010-09-09 23:26:27 7
To list all files in your home directory
This is sample output - yours may be different.
-24

ls -l ~

lineak · 2010-09-12 10:55:00 5
To list all files in your home directory
This is sample output - yours may be different.
-24

ls -l $HOME

lineak · 2010-09-12 10:56:13 3
Create a new file
This is sample output - yours may be different.
-25

touch /path/to/file.txt

verm666 · 2010-12-28 11:12:42 3
Create a new file
This is sample output - yours may be different.
-25

touch file

Haegin · 2010-12-28 11:25:06 4
go to home directory
This is sample output - yours may be different.
-25

cd

veganstraightedg · 2009-03-23 03:12:40 10
List all files & directories in the current directory
This is sample output - yours may be different.
-25

ls -la

jdecuyper · 2009-04-13 20:37:25 9
‹ First < 565 566 567 568 >

What's this?

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

Share Your Commands

Check These Out

Play musical notes from octave of middle C

Are there any creative pieces of music that can be created using beep and the shell? I'd love to hear it!

Prevent non-root users from logging in

Also with optional message: $ echo "no login for you" > /etc/nologin (This doesn't affect your current X session - you're already logged in!)

Display IP : Count of failed login attempts

The lastb command presents you with the history of failed login attempts (stored in /var/log/btmp). The reference file is read/write by root only by default. This can be quite an exhaustive list with lots of bots hammering away at your machine. Sometimes it is more important to see the scale of things, or in this case the volume of failed logins tied to each source IP. The awk statement determines if the 3rd element is an IP address, and if so increments the running count of failed login attempts associated with it. When done it prints the IP and count. The sort statement sorts numerically (-n) by column 3 (-k 3), so you can see the most aggressive sources of login attempts. Note that the ':' character is the 2nd column, and that the -n and -k can be combined to -nk. Please be aware that the btmp file will contain every instance of a failed login unless explicitly rolled over. It should be safe to delete/archive this file after you've processed it.

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"

check open ports without netstat or lsof

Function to check whether a regular file ends with a newline

tail -c 1 "$1" returns the last byte in the file. Command substitution deletes any trailing newlines, so if the file ended in a newline $(tail -c 1 "$1") is now empty, and the -z test succeeds. However, $a will also be empty for an empty file, so we add -s "$1" to check that the file has a size greater than zero. Finally, -f "$1" checks that the file is a regular file -- not a directory or a socket, etc.

sorting file contents into individual files with awk

This command will sort the contents of FILENAME by redirecting the output to individual .txt files in which 3rd column will be used for sorting. If FILENAME contents are as follows: foo foo A foo bar bar B bar lorem ipsum A lorem Then two files called A.txt and B.txt will be created and their contents will be: A.txt foo foo A foo lorem ipsum A lorem and B.txt will be bar bar B bar

Install pip with Proxy

Installs pip packages defining a proxy

Download all videos in your Boxee queue

Gets all videos in your boxee queue with a URL associated with them and attempts to download each using get_flash_videos

Advanced python tracing

Trace python statement execution and syscalls invoked during that simultaneously

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)

All commands (14,187) the last day the last week the last month all time sorted by date votes

What's this?

Check These Out

Stay in the loop…

All commands (14,187)

sorted by