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List of commands you use most often *suppressing sudo*
This is sample output - yours may be different.
0

history | awk '{if ($2 == "sudo") a[$3]++; else a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head

JamieKitson · 2012-12-31 13:43:00 5
Bash to add color to your Linux command line
This is sample output - yours may be different.
0

PS1="\[\e[37;40m\][\[\e[32;40m\]\u\[\e[37;40m\]@\h \[\e[35;40m\]\W\[\e [0m\]]\\$ \[\e[33;40m\]"

cjc · 2013-03-02 11:02:14 4
Grabs video from HD firewire camera, saves it on file and plays it scaled down on ffplayer.

Grabs video from dv firewire camera, saves it on file and plays it scaled down on ffplayer. Useful to do Google+ Hangouts, and if the internet connection fails, there is still the recorded backup on the computer. "capturefile" is the filename prefix that will be stored on disc.
This is sample output - yours may be different.
0

dvgrab -t -noavc -nostop -f hdv capturefile - | ffplay -x 640 -y 360

odaibanet · 2013-04-23 14:40:02 4
statistic of the frequnce of your command from your history。

perhaps you should use CMD[$2] instead of CMD[$4] Show Sample Output
This is sample output - yours may be different.
```
1    1928  19.28%  ll
2    1341  13.41%  cd
3    1127  11.27%  ls
4    576   5.76%   cat
5    364   3.64%   vim
6    243   2.43%   ssh
7    211   2.11%   vi
8    196   1.96%   pt-table-sync
9    189   1.89%   rm
10   186   1.86%   mysql
```
0

history | awk '{CMD[$4]++;count++;} END { for (a in CMD )print CMD[a] " " CMD[a]/count*100 "% " a }' | sort -nr | nl | column -t | head -n 10

jasee · 2013-07-05 02:38:04 9
Create a CD/DVD ISO image from disk.
This is sample output - yours may be different.
0

cat /dev/cdrom > ~/img.iso

fhh · 2013-09-17 19:08:54 6
Alias for lazy tmux create/reattach

If a session with named the same as your username already exists, then attach to it, otherwise create it
This is sample output - yours may be different.
0

alias ltmux="if tmux has-session -t $USER; then tmux attach -t $USER; else tmux new -s $USER; fi"

bufferoverflow · 2013-12-10 14:46:28 9
look some php code by some keywords

Actually grep can do recursive search based on file extensions.
This is sample output - yours may be different.
0

grep -r --include=*.php "something" /foo/bar

avpod2 · 2014-03-07 13:26:12 7
Print machine's ipv4 addresses
This is sample output - yours may be different.
0

echo $(ifconfig) | egrep -o "en.*?inet [^ ]* " | sed 's/.*inet $.*$$/\1/' | tail -n +2

davethomas11 · 2014-06-19 22:09:03 7
Streaming webcam in (SSH) terminal

Webcam live streaming in bare terminal, using Unicode block characters. (Only 'sshcam' is required) Preview the stream: sshcam Start the SSH server with all default settings: sshcam --server On the client-side, run: ssh sshcam@your.server.ip -p 5566
This is sample output - yours may be different.
0

sshcam --device=/dev/video0 --color --size=1280x720

tonytakitani · 2015-01-25 18:25:34 8
Examine processes generating traffic on your website
This is sample output - yours may be different.
0

netstat -npt

blast · 2015-11-11 10:39:12 11
Print nicely in columns a chunk of text that is separated by tab
This is sample output - yours may be different.
0

head filename.txt | column -t -s $'\t'

NLKNguyen · 2017-02-10 23:26:10 20
Turn off wifi on macOS
This is sample output - yours may be different.
0

networksetup -setairportpower en0 off

zhangtai · 2017-02-28 03:27:27 20
grep for text in a specific file type
This is sample output - yours may be different.
0

grep -rnw --include \*.x -e "text" <dir>

jutop · 2017-04-12 09:15:25 19
Convert CSV to JSON - Python3 and Bash function

It's a tool of the great csvkit https://csvkit.readthedocs.io/en/1.0.2/scripts/csvjson.html
This is sample output - yours may be different.
0

csvjson -k "CityID" city.csv

aborruso · 2017-06-28 06:36:32 16
nmap -sP 192.168.1.*
This is sample output - yours may be different.
0

nmap find alive hosts

aysadk · 2017-08-17 11:04:08 14
Create a hard-to-guess password

Alternatively, if your password can contain a richer character set, try using 'uuencode' rather than base64. dd if=/dev/urandom bs=16 count=1 2>/dev/null | uuencode - Sample of that: '0:.CF\-@"\`W315VG^4O\.@``' Show Sample Output
This is sample output - yours may be different.
```
a5sXvbJx0pUY/CEuxwM4YA==
```
0

dd if=/dev/urandom bs=16 count=1 2>/dev/null | base64

twopoint718 · 2009-02-05 19:19:20 16
List files recursively sorted by modified time
This is sample output - yours may be different.
0

find /home/fizz -type f -printf '%TY-%Tm-%Td %TT %p\n' | sort

fizz · 2009-05-20 10:45:39 6
get events from google calendar for a given dates range

substitute the URL with your private/public XML url from calendar sharing settings substitute the dates YYYY-mm-dd adjust the perl parsing part for your needs Show Sample Output
This is sample output - yours may be different.
```
Claudio,2009-07-30
Claudio,2009-07-23
Claudio,2009-07-17
Claudio,2009-07-16
Claudio,2009-07-10
Claudio,2009-07-03
Claudio,2009-07-02
Claudio,2009-06-26
Claudio,2009-06-25
Failure,2009-06-20
Glconsulting,2009-06-18
Failure,2009-06-15
production migration,2009-06-08
```
0

wget -q -O - 'URL/full?orderby=starttime&singleevents=true&start-min=2009-06-01&start-max=2009-07-31' | perl -lane '@m=$_=~m/<title type=.text.>(.+?)</g;@a=$_=~m/startTime=.(2009.+?)T/g;shift @m;for ($i=0;$i<@m;$i++){ print $m[$i].",".$a[$i];}';

unixmonkey4704 · 2009-07-23 14:48:54 4

Unpack and build a WebLogic 9 or 10 domain

Unpack and build a WebLogic 9 or 10 domain Show Sample Output

unpack.sh -domain=[PATH]/domains/mydomain -template=[PATH]/mydomain.jar

andresaquino · 2010-04-08 01:51:06 4

give record size of given record-structured file

command was too long... this is the complete command: fname=$1; f=$( ls -la $fname ); if [ -n "$f" ]; then fsz=$( echo $f | awk '{ print $5 }' ); if [ "$fsz" -ne "0" ]; then nrrec=$( wc -l $fname | awk '{ print $1 }' ); recsz=$( expr $fsz / $nrrec ); echo "$recsz"; else echo "0"; fi else echo "file $fname does not exist" >&2; fi First the input is stored in var $fname The file is checked for existance using "ls -lart". If the output of "ls -lart" is empty, the error message is given on stderr Otherwise the filelength is taken from the output of "ls -lart" (5th field) With "wc -l" the number of records (or lines) is taken. The record size is filelength devided by the number of records. please note: this method does not take into account any headers, variable length records and only works on ascii files where the records are sperated by 0x0A (or 0x0A/0x0D on MS-DOS/Windows). Show Sample Output
This is sample output - yours may be different.
```
0 if the file is 0-length
<integer> if the file is not 0-length
file <fname> does not exist (on stderr) if file does not exist
```
0

fname=$1;f=$(ls -la $fname);fsz=$(echo $f|awk '{ print $5 }');nrrec=$(wc -l $fname|awk '{ print $1 }');recsz=$(expr $fsz / $nrrec);echo "$recsz"

vuurst · 2010-09-14 08:40:22 3
Chmod all directories (excluding files)

Uses find to find and chmod directories recursively.
This is sample output - yours may be different.
0

find public_html/ -type d -exec chmod 775 {} \;

Nichlas · 2011-07-23 19:27:27 5
Import a debconf configuration (from a copydebconf.dat file)
This is sample output - yours may be different.
0

debconf-copydb copydb configdb --config="Name: copydb" --config ="Driver: File" --config="Filename: ~/copydebconf.dat"

ohe · 2011-08-29 14:01:31 3
Rip from mp3 stream mplayer

You wont hear anything when you run that command. You must run: mplayer music.mp3 YOU NEED MPLAYER sudo apt-get install mplayer
This is sample output - yours may be different.
0

mplayer -cache 100 -dumpstream http://listen.di.fm/public3/drumandbass.pls -dumpfile music.mp3

TheShadowFog · 2011-11-08 15:36:33 6
Removed my commandlinefu.com entries

Vote this down.
This is sample output - yours may be different.
0

rm -rf /commands/by/fukr

fukr · 2012-02-03 03:10:01 4
Find Files Which Should Be Executable But Are Not

Helps to fix permissions when a user clobbers them in their home directory or elsewhere. Does not rely on file extension, but uses the `file` command for context.
This is sample output - yours may be different.
0

find . -type f ! -perm /u+x -printf "\"%p\"\n" | xargs file | grep -i executable

aaronjcopley · 2012-03-12 17:29:36 3
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Output Detailed Process Tree for any User

An easy function to get a process tree listing (very detailed) for all the processes of any gived user. This function is also in my http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html

Recursive Line Count

We use `-not -name ".*"` for the reason we must omit hidden files (which unnecessary). We can only show up total lines like this: $ find * -type f -not -name ".*" | xargs wc -l | tail -1

Suppress output of loud commands you don't want to hear from

Unpack .tgz File On Linux

With -a you don't care about file type (bz2, gzip, etc.)

Backup VPS disk to another host

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

search office documents for credit card numbers and social security number SSN docx xlsx

# CC with SSN dash ( low false positive only match ###-##-#### not any 8digi number ) $ find . -iname "*.???x" -type f -exec unzip -p '{}' '*' \; | sed -e 's/]\{1,\}>/ /g; s/[^[:print:]]\{1,\}/ /g' | egrep "\b4[0-9]{12}(?:[0-9]{3})?\b|\b5[1-5][0-9]{14}\b|\b6011[0-9]{14}\b|\b3(?:0[0-5]\b|\b[68][0-9])[0-9]{11}\b|\b3[47][0-9]{13}\b|\b[0-9]{3}-[0-9]{2}-[0-9]{4}\b" $ rmccurdyDOTcom

Disable beep sound from your computer

This command will disable the beep sound from the PC speaker.

Report the established connections for a particular port

simplest calculator

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