All commands sorted by votes

All commands (14,187)

sorted by

Join multipart archive in binary mode under Windows with command line

Note between the last there is no plus sign
This is sample output - yours may be different.
-1

copy /b part.1 + part.2 + part.n file.extension

bugmenot · 2013-01-04 21:21:15 5
regex to match an ip

Handles everything except octets with 255. Ran through ip generator with variable octet lengths.
This is sample output - yours may be different.
-1

echo 127.0.0.1 | egrep -e '^(([01]?[0-9]{1,2}|2[0-4][0-9]|25[0-4])\.){3}([01]?[0-9]{1,2}|2[0-4][0-9]|25[0-4])$'

arcege · 2009-09-17 17:40:48 3
Enable passwordless login

It is safe when there is "PermitEmptyPasswords no" in /etc/ssh/sshd_config. This command is useful when there is no need to have a password.
This is sample output - yours may be different.
-1

sudo usermod -p $(mkpasswd '') user_id

ckclark · 2010-05-06 20:39:58 42
Uptime in minute

Get info directly from /proc/uptime
This is sample output - yours may be different.
-1

awk '{print $0/60;}' /proc/uptime

ioggstream · 2011-08-31 10:41:21 17
remote ssh xdmcp session

ssh compresion -C option ... on slow connection VNC performs better but in local LAN native secure X protocol is an option Show Sample Output
This is sample output - yours may be different.
```
remote login screen
```
-1

ssh -XfC -c blowfish user@host Xephyr dpms -fullscreen -query localhost :5

hute37 · 2012-11-01 18:59:57 9
External IP (raw data)
This is sample output - yours may be different.
-1

curl curlmyip.com

inzel · 2013-09-19 19:12:53 7
chain search and replace special characters to html entities in gvim

a brief list of very common special characters in Dutch. Usefull for formatting Word source to html.
This is sample output - yours may be different.
-1

%s/?/\ï/ge | %s/?/\é/ge | %s/?/"/ge | %s/?/"/ge | %s/?/'/ge | %s/?/'/ge | %s/?/\ê/ge | %s/?/\/ge | %s/?/\è/ge | %s/?/\ó/ge | %s/?/\ö/ge | %s/?/\é/ge | %s/?/\–/ge | %s/?/\—/ge

miccaman · 2010-07-15 07:40:45 4
df without line wrap on long FS name

all on one line and you also get the filesystem type Show Sample Output
This is sample output - yours may be different.
```
Filesystem         Mount               Size     Used    Avail %Used  fs Type 
/dev/sda2          /                 109,1G    39,3G    64,3G   41%  ext4    
/dev/sda1          /boot             896,8M   251,8M   597,1M   33%  ext2    
```
-1

di

Christian · 2013-01-06 09:07:58 5
Change dates/timestamps of all files in the current folder
This is sample output - yours may be different.
-1

gci -rec | %{ $_.lastWriteTime = ($_.lastAccessTime = ($_.creationTime = (get-date "2021-05-19T10:14:00"))) }

swarzynski · 2022-01-12 08:08:40 366
Rename *.MP3 *.Mp3 *.mP3 etc.. to *.mp3.

Extensible to other ugly extensions like *.JPG, *.Jpg etc.. Leave out the last pipe to sh to perform a dry run.
This is sample output - yours may be different.
-1

find ./ -iname "*.mp3" -type f -printf "mv '%p' '%p'\n" | sed -e "s/mp3'$/mp3'/I" | sh

jnash · 2009-03-27 13:42:40 11
for loop with leading zero in bash 3

Bash 4 will let you do {00..19} to get leading zeros, but Bash 3 doesn't have that feature. This technique gets you partway there (the sequences need be such that the last digit ranges from zero to nine - you can't use this for something like Bash 4's {03..27}, for example). When this limitation is not a problem, you can avoid some complicated string manipulation for concatenating leading zeros. You can add more digits like this: {0..1}{0..9}{0..9} (ranges from 0 to 99 with up to two leading zeros). To pad with additional zeros: for i in 000{0..1}{0..9}; do echo $i; done or for i in {0..1}{0..9}; do echo "000$i"; done This is useful for creating values to sort or for creating filenames with a fixed format. Note that this will also work: touch {0..1}{0..9} Show Sample Output
This is sample output - yours may be different.
```
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
```
-1

for i in {0..1}{0..9}; do echo $i; done

dennisw · 2009-09-18 02:51:12 5
Capture screen and default audio input device and generate an incompress AVI file

The command generate an huge output file (depending on screen resolution and time).
This is sample output - yours may be different.
-1

gst-launch avimux name=mux ! filesink location=out.avi \ alsasrc ! audioconvert ! queue ! mux. istximagesrc name=videosource use-damage=false ! video/x-raw-rgb,framerate=10/1 ! videorate ! ffmpegcolorspace ! video/x-raw-yuv,framerate=10/1 ! mux.

Nicolargo · 2010-07-15 09:39:51 5
pbzip2 tar pipe to untar
This is sample output - yours may be different.
-1

pbzip2 -dck <bz2file> | tar xvf -

maarten · 2010-08-16 22:16:50 3
Jump to any directory above the current
This is sample output - yours may be different.
-1

jda() { cd $(pwd | sed "s/$\/$@\/$.*/\1/g"); }

saibbot · 2011-10-05 21:14:57 5
Convert Windows/DOS Text Files to Unix

converts non-ISO dos text files for use on unix systems.
This is sample output - yours may be different.
-1

dos2unix dostxt unixtxt

wwest4 · 2009-02-05 21:11:43 17
Recursively search a directory tree for all .php .inc .html .htm .css .js files for a certain string

Use find to recursively make a list of all files from the current directory and downwards. The files have to have an extension of the ones listed. Then for every file found, grep it for 'searchString', returns the filename if searchString is found. Show Sample Output
This is sample output - yours may be different.
```
./index.html
./lib/php/buttons.php
```
-1

find . -type f $ -name "*.js" -o -name "*.php" -o -name "*.inc" -o -name "*.html" -o -name "*.htm" -o -name "*.css" $ -exec grep -il 'searchString' {} \;

niels_bom · 2010-02-07 15:28:20 3
easily find megabyte eating files or directories

Essentially the same as funky's alias, but will not traverse filesystems and has nicer formatting. Show Sample Output
This is sample output - yours may be different.
```
You could add this in your profile with a different format to make it look less daunting:
$ alias dush="du -xsm * | \
              sort -n | \
              awk '{ \
                printf(\"%4s MB  ./\",\$1); \
                for ( i=1 ; i<=NF ; i++ ) { \
                  if ( i > 1 ) printf(\"%s \",\$i) \
                }; \
                printf(\"\n\") \
              }' | \
              tail"
```
-1

alias dush="du -xsm * | sort -n | awk '{ printf(\"%4s MB ./\",\$1) ; for (i=1;i<=NF;i++) { if (i>1) printf(\"%s \",\$i) } ; printf(\"\n\") }' | tail"

dopeman · 2010-07-15 10:38:27 4
Remove all leading and trailing slashes on each line of a text file

There can be more than one trailing slash, all of them will be removed.
This is sample output - yours may be different.
-1

sed -e "s,/\+$,," -e "s,^/\+,," file.txt

bugmenot · 2012-11-02 21:08:30 8
run as system on windows

In 2014, ask a kind of specific UAC authorization to run due to his dangerousity.
This is sample output - yours may be different.
-1

@echo off && sc create CmdAsSystem type= own type= interact binPath= "cmd /c start cmd /k (cd c:\ ^& color ec ^& title ***** SYSTEM *****)" && net start CmdAsSystem && sc delete CmdAsSystem

willemijns · 2010-02-07 15:28:28 4
easy seach ip
This is sample output - yours may be different.
-1

ifconfig eth0|awk '/HWaddr/{gsub(/:/,"",$5);print $5}'

leoiceo · 2013-03-08 06:36:20 5
Generate CHECK TABLE statements for all MySQL database tables on a server

This command will generate "CHECK TABLE `db_name.table_name` ;" statements for all tables present in databases on a MySQL server, which can be piped into the mysql command. (Can also be altered to perform OPTIMIZE and REPAIR functions.) Tested on MySQL 4.x and 5.x systems in a Linux environment under bash. Show Sample Output
This is sample output - yours may be different.
```
CHECK TABLE `mysql.columns_priv` ;
CHECK TABLE `mysql.db` ;
CHECK TABLE `mysql.func` ;
CHECK TABLE `mysql.help_category` ;
CHECK TABLE `mysql.help_keyword` ;
CHECK TABLE `mysql.help_relation` ;
CHECK TABLE `mysql.help_topic` ;
CHECK TABLE `mysql.host` ;
CHECK TABLE `mysql.tables_priv` ;
CHECK TABLE `mysql.time_zone` ;
CHECK TABLE `mysql.time_zone_leap_second` ;
CHECK TABLE `mysql.time_zone_name` ;
CHECK TABLE `mysql.time_zone_transition` ;
CHECK TABLE `mysql.time_zone_transition_type` ;
CHECK TABLE `mysql.user` ;
CHECK TABLE `mysql.user_info` ;
```
-1

DD=`cat /etc/my.cnf | sed "s/#.*//g;" | grep datadir | tr '=' ' ' | gawk '{print $2;}'` && ( cd $DD ; find . -mindepth 2 | grep -v db\.opt | sed 's/\.\///g; s/\....$//g; s/\//./;' | sort | uniq | tr '/' '.' | gawk '{print "CHECK TABLE","`"$1"`",";";}' )

atcroft · 2009-07-25 03:42:31 15
nested XDMCP login

XDMCP ust be enabled (gdm,lightdm,xdm etc ) Show Sample Output
This is sample output - yours may be different.
```
nested login screen
```
-1

/usr/bin/Xephyr :5 -query localhost -once -fullscreen -ac -keybd "ephyr,,,xkbmodel=pc105,xkblayout=it,xkbrules=evdev,xkboption="

hute37 · 2012-11-03 01:21:36 41

View your motherboard's ACPI tables (in Debian & Ubuntu)

In July 2008, there was an uproar over Foxconn motherboards feeding Linux installs incorrect ACPI information (http://ubuntu-virginia.ubuntuforums.org/showthread.php?t=869249). Foxconn has gladly corrected their mistake, but make sure it's not happening on your motherboard! After running the command, just view the 'dsdt.dsl' in any editor you like. Show Sample Output

-1

sudo aptitude -y install iasl && sudo cat /sys/firmware/acpi/tables/DSDT > dsdt.dat && iasl -d dsdt.dat

brettalton · 2009-02-15 23:13:50 13

dig this
This is sample output - yours may be different.
-1

for dnsREC in $(curl -s http://www.iana.org/assignments/dns-parameters |grep -Eo ^[A-Z\.]+\ |sed 's/TYPE//'); do echo -n "$dnsREC " && dig +short $dnsREC IANA.ORG; done

commandlinefu · 2009-09-01 03:11:18 3
force change password for all user
This is sample output - yours may be different.
-1

for i in `cat /etc/passwd | awk -F : '{ print $1 }';`; do passwd -e $i; done

irraz · 2009-11-11 13:01:22 3
‹ First < 492 493 494 495 496 > Last ›

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

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"

remove hostname from known_hosts

Expand shortened URLs

curl(1) is more portable than wget(1) across Unices, so here is an alternative doing the same thing with greater portability. This shell function uses curl(1) to show what site a shortened URL is pointing to, even if there are many nested shortened URLs. This is a great way to test whether or not the shortened URL is sending you to a malicious site, or somewhere nasty that you don't want to visit. The sample output is from: $ expandurl http://t.co/LDWqmtDM

Check the status of a network interface

find files beginning with filename* that do not include "string"

Inverse grep, to find files without the string

Get the date for the last Saturday of a given month

If your locale has Monday as the first day of the week, like mine in the UK, change the two $7 into $6

Watch the progress of 'dd'

run this in another terminal, were xxxx is the process ID of the running dd process. the progress will report on the original terminal that you ran dd on

shutdown pc in 4 hours without needing to keep terminal open / user logged in.

From the 'disown' man page: disown prevents the current shell from sending a HUP signal to each of the given jobs when the current shell terminates a login session.

Undo mkdir -p new/directory/path

Removes all directories on given path, working from right to left, and stops when reaching a non-empty directory Counterpart of $ mkdir -p new/directory/path Shortcut (must be issues as next command immediately after mkdir): $ ^mk^rm ( see http://www.commandlinefu.com/commands/view/19/runs-previous-command-but-replacing )

Find the 10 users that take up the most disk space

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