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Send SVN diff to Meld
This is sample output - yours may be different.
0

svn diff --diff-cmd='meld' -r 100:BASE FILE

0disse0 · 2012-02-03 18:00:07 3
Print free RAM in MB

Does not output the word "shared" so you can easily store this number in a variable. Show Sample Output
This is sample output - yours may be different.
```
1029
```
0

free -m | awk '/cache:/ {print $4}'

felixhummel · 2012-03-13 19:54:26 4
firefox ascii logo
This is sample output - yours may be different.
0

curl -s http://people.mozilla.com/~faaborg/files/shiretoko/firefoxIcon/firefox-64.png | convert - jpg:- | jp2a --color --html -> firefox.html

kev · 2012-04-30 16:31:07 5
Create a tar archive from a text list without trailing slash in directories
This is sample output - yours may be different.
0

cat list.txt | pax -wd > archive.tar

bugmenot · 2013-01-02 17:53:52 4
Find files in current directory which are larger in size (500000k)
This is sample output - yours may be different.
0

find . -type f -size +50000k -exec ls -lh {} \; | awk '{ print $9 ": " $5 }'

maheshmahajan · 2014-06-24 07:24:39 7
Calculate CPU load limit on GNU/Linux

shell order of operation example which calculates: x = number of physical CPU's y = number of cores per CPU 2(x * y) + 1 = CPU load limit Show Sample Output
This is sample output - yours may be different.
```
9
```
0

echo "$(( $(( $(grep 'physical id' '/proc/cpuinfo' | uniq | wc -l) * $(grep 'core id' '/proc/cpuinfo' | wc -l) )) * 2 + 1 ))"

snorf · 2015-11-14 20:44:39 11
Gets shellcode opcodes from binary file using objdump

Seems to work on Ubuntu 14.02 LTS Show Sample Output
This is sample output - yours may be different.
```
"\x31\xc0\xb0\x04\x31\xdb\xb3\x01\xeb\x11\x59\x31\xd2\xb2\x0e\xcd\x80\x31"
```
0

objdump -s ./HelloWorld | grep -v '^ [0-9a-f][0-9a-f][0-9a-f][0-9a-f] \b' | grep -v 'Contents' | grep -v './' | cut -d' ' -f 3-6| sed 's/ //g' | sed '/./!d' | tr -d '\n'| sed 's/.\{2\}/&\\x/g' | sed 's/^/\\x/'|sed 's/..$//'|sed 's/^/"/;s/$/"/g'

mark20 · 2016-10-05 23:31:05 17
Color code each job for GNU Parallel

Colorize each job in a new color.
This is sample output - yours may be different.
0

parallel -j10 --tagstring '\033[30;{=$_=++$::color%8+90=}m' sleep .3{}\;seq {} ::: {1..10}

unixmonkey91589 · 2017-07-05 19:36:27 20
Creat a new user with no shell. Useful to provide other services without giving shell access.
This is sample output - yours may be different.
0

useradd -s /sbin/nologin nicdev

nicdev · 2009-02-15 14:49:17 10
print latest (top 10, top 3 or *) commandlinefu.com commands

This lengthy cryptic line will print the latest top 10 commandlinefu.com posts without their summaries. To print also their respective summaries use the following (even bigger) command line: wget -qO - http://www.commandlinefu.com/feed/tenup | xmlstarlet sel -T -t -o '<doc>' -n -t -m rss/channel/item -o '<item>' -n -o '<title>' -v title -o '</title>' -n -o '<description>' -v description -o '</description>' -n -o '</item>' -n -t -o '</doc>' | xmlstarlet sel -T -t -m doc/item -v description/code -n -v title -n -n It is recommended to include this line into a shell script to be easily run, as I do myself. You could also use the following URLs to browse the top 3 commands: wget -qO - http://www.commandlinefu.com/feed/threeup | xmlstarlet ... .. or all others: wget -qO - http://feeds2.feedburner.com/Command-line-fu | xmlstarlet ... PS: You need to install "xmlstarlet" to run it. It is found in Debian APT repositories (apt-get install xmlstarlet) or under the http://xmlstar.sourceforge.net/ URL. Show Sample Output
This is sample output - yours may be different.
```
$ ps aux | grep [p]rocess-name
$ getconf LONG_BIT
$ for I in $(mysql -e 'show databases' -s --skip-column-names); do mysqldump $I | gzip > $I.sql.gz"; done
$ free && sync && echo 3 > /proc/sys/vm/drop_caches && free
$ find . -empty -type d -exec rmdir {} +
$ exiftool '-Directory<DateTimeOriginal' -d %Y/%m/%d dir
$ tmpfile=$(mktemp) && echo -e 'startup_message off\nscreen -t top htop\nsplit\nfocus\nscreen -t nethogs nethogs wlan0\nsplit\nfocus\nscreen -t iotop iotop' > $tmpfile && sudo screen -c $tmpfile
$ /sbin/kexec -l /boot/$KERNEL --append="$KERNELPARAMTERS" --initrd=/boot/$INITRD; sync; /sbin/kexec -e
$ dig +short txt <keyword>.wp.dg.cx
$ autossh -M50000 -t server.example.com 'screen -raAd mysession'
$ knock <host> 3000 4000 5000 && ssh -p <port> user@host && knock <host> 5000 4000 3000
$ cat /var/log/secure.log | awk '{print substr($0,0,12)}' | uniq -c | sort -nr | awk '{printf("\n%s ",$0) ; for (i = 0; i<$1 ; i++) {printf("*")};}'
$ for x in `jot - 0 2400 25`; do curl "http://www.commandlinefu.com/commands/browse/sort-by-votes/plaintext/$x"  ; done > commandlinefu.txt
$ ssh -t remote_host screen -r
$ diff <(echo "$a") <(echo "$b")
```
0

wget -qO - http://www.commandlinefu.com/feed/tenup | xmlstarlet sel -T -t -o '<x>' -n -t -m rss/channel/item -o '<y>' -n -v description -o '</y>' -n -t -o '</x>' | xmlstarlet sel -T -t -m x/y -v code -n

fsilveira · 2009-08-14 02:44:00 3
Outputs a 10-digit random number
This is sample output - yours may be different.
0

echo $RANDOM$RANDOM$RANDOM |cut -c3-12

emmerich164 · 2009-10-13 08:08:45 4
Ignore subdirectories in subversion

If you would like to ignore a directory including its subdirectory. For example, a tmp/ directory
This is sample output - yours may be different.
0

find . -type d -not $ -name .svn -prune $ -exec svn propset svn:ignore '*' {} \;

tristan_ph · 2010-08-15 03:45:57 4
GREP a PDF file.
This is sample output - yours may be different.
0

grep -i '[^script$]' 1.txt

vinod · 2010-10-20 12:17:04 3
Convert .ogg to .avi
This is sample output - yours may be different.
0

mencoder -idx a.ogg -ovc lavc -oac mp3lame -o b.avi

lukasz · 2010-12-20 14:30:48 3
get a random command
This is sample output - yours may be different.
0

find $(echo "$PATH" | tr ':' ' ') -name "*program*"

hunterm · 2011-01-07 22:27:44 5
Losslessly optimize JPEG files for file size

You can also save EXIF information by copying it to temp.jpg: jpegtran -optimize -outfile temp.jpg <JPEG> && jhead -te temp.jpg "$_" && mv temp.jpg "$_"
This is sample output - yours may be different.
0

jpegtran -optimize -outfile temp.jpg <JPEG> && mv temp.jpg "$_"

h3xx · 2011-07-24 08:55:46 3
Access to a SVN repository on a different port

first need to Edit the configuration file /home/cicciobomba/.subversion and under the [tunnels] add this line ciccio_diverso = /usr/bin/ssh -p 12345
This is sample output - yours may be different.
0

sudo svn co svn+ ciccio_diverso://root@192.160.150.151/svn-repo/progettino

0disse0 · 2012-02-03 18:16:02 12
Filter Android log output by PID
This is sample output - yours may be different.
0

adb shell ps | grep my.app.packagename | awk '{print $2}' | xargs -I ? sh -c "adb logcat -v time | grep ?"

jackpatmos · 2012-03-14 10:02:11 5
Pretend your shell is MS-DOS command.com

(This may be specific to bash only.) This transforms the current working directory to all uppercase characters and replaces forward slashes with backslashes, prepending the string with "C:" and appending a single ">". It serves no practical purpose, but may serve as a great practical joke if you can insert it to some victim's .bashrc :-) Show Sample Output
This is sample output - yours may be different.
```
C:\>pwd
/
C:\>
```
0

export PROMPT_COMMAND=$PROMPT_COMMAND'; export PWD_UPCASE="${PWD^^}"'; export PS1='C:${PWD_UPCASE//\\//\\\\}>'

chungy · 2012-04-30 20:09:49 3
Command to kill PID

You can also use gawk: ps auxww | gawk '/application/' | gawk '/processtobekilled/' | gawk '{print $2}' | grep -v grep | xargs kill -9
This is sample output - yours may be different.
0

ps auxww | grep application | grep processtobekilled | gawk '{print $2}' | grep -v grep | xargs kill -9

j0sh10 · 2012-07-03 20:37:56 43
Get user's full name in Mac OS X
This is sample output - yours may be different.
0

finger `whoami` | awk -F: '{ print $3 }' | head -n1 | sed 's/^ //'

andrew_duffy · 2013-01-03 20:19:03 7
Sync a remote mysql database to a local db via SSH

There must be no space between -p and the password
This is sample output - yours may be different.
0

ssh <remoteuser>@<remoteserver> \ 'mysqldump -u <user> -p<password> <database>' \ | mysql -u <user> -p<password> <database>

kvcrawford · 2013-03-05 19:20:52 14
Maximize active window

Bind it to a shortcut key, using something like xbindkeys-config (if you do not have xbindkeys: apt-get install xbindkeys xbindkeys-config)
This is sample output - yours may be different.
0

wmctrl -r :ACTIVE: -b add,maximized_vert; wmctrl -r :ACTIVE: -b add,maximized_horz

paulera · 2013-04-24 16:59:04 11
bulk git pull
This is sample output - yours may be different.
0

for dir in ~/git/*; do (cd "$dir" && git pull); done

oumu · 2013-07-06 14:24:18 7
IBM AIX: Verify a sha256sum listing with openssl

This command is used to verify a sha256sum-formatted file hash list on IBM AIX or any other UNIX-like OS that has openssl but doesn't have sha256sum by default. Steps: 1: Save to the filesystem a script that: A: Receives as arguments the two parts of one line of a sha256sum listing B: Feeds a file into openssl on SHA256 standard input hash calculation mode, and saves the result C: Compares the calculated hash against the one received as argument D: Outputs the result in a sha256sum-like format 2: Make the script runnable 3: Feed the sha256sum listing to xargs, running the aforementioned script and passing 2 arguments at a time Show Sample Output
This is sample output - yours may be different.
```
cognos-EARs/ServletGateway-1021-SDK-customized.ear: OK
cognos-EARs/ServletGateway-1021-SDK-customizedandfixed.ear: OK
cognos-EARs/ServletGateway-1021-base.ear: OK
cognos-EARs/p2pd-1021-SDK-customized.ear: OK
cognos-EARs/p2pd-1021-base.ear: OK
```
0

echo '#! /usr/bin/ksh\ncat $2 | openssl dgst -sha256 | read hashish; if [[ $hashish = $1 ]]; then echo $2: OK; else echo $2: FAILED; fi;' > shacheck; chmod +x shacheck; cat hashishes.sha256 | xargs -n 2 ./shacheck;

RAKK · 2013-09-18 21:51:20 8
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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.

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Resume a partially copied file

Prevent an IPv6 address on an interface from being used as source address of packets.

If two or more IPv6 addresses are assigned to an interface, apply this command to all but the address that you want to use as the source address of outbound packets. This is Linux-specific and requires the iproute package, or equivalent for your distribution.

List out classes in of all htmls in directory

Lists out all classes used in all *.html files in the currect directory. usefull for checking if you have left out any style definitions, or accidentally given a different name than you intended. ( I have an ugly habit of accidentally substituting camelCase instead of using under_scores: i would name soemthing counterBox instead of counter_box) WARNING: assumes you give classnames in between double quotes, and that you apply only one class per element.

Changing the terminal title to the last shell command

You can set the previous bash command as the terminal title by this command. Explanation: -trap assigns a command to execute at a given bash signal. -in the $BASH_COMMAND you find the last command -you can set the terminal title with the escape sequence: \e]0;this is the title\007 -to let the echo care about the backslashes give the -e to it Since trap is a built in bash command you find more informatin in 'man bash'for more Source: http://www.davidpashley.com/articles/xterm-titles-with-bash.html

Hypnosis

for OS X

finding cr-lf files aka dos files with ^M characters

its useful to run dos2unix command later on them.

Stream youtube videos

Streams youtube-dl video to mplayer. Usage: syt 'youtube.com/link' 'anotherlinkto.video' Uses mplayer controls

pinky - user info

Gives information about user's home directory and real name and shell user is having.

Rename files in batch

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