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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
Convert uppercase to lowercase extensions

Using a for loop, rename all files with .MP3 extension to .mp3. Show Sample Output
This is sample output - yours may be different.
```
All *.MP3 in $PWD will be turned to .mp3
```
0

find . -type f -name *.MP3 -print0 | xargs -0 -i rename .MP3 .mp3 {}

pibarnas · 2012-04-29 02:44:44 5
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Copy the contents of one partition to another

Convert diff output to HTML ins/del

Bitcoin Brainwallet Checksum Calculator

A bitcoin "brainwallet" is a secret passphrase you carry in your brain. The Bitcoin Brainwallet Exponent Calculator is the second of three functions needed to calculate a bitcoin PRIVATE key. Roughly, checksum is the first 8 hex digits of sha256(sha256(0x80+sha256(passphrase))) Note that this is a bash function, which means you have to type its name to invoke it

Install pip with Proxy

Installs pip packages defining a proxy

Get AWS temporary credentials ready to export based on a MFA virtual appliance

You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

Display current time in requested time zones.

The time zone names come from the tz database which is usually found at /usr/share/zoneinfo.

Create a visually twisted effect by alternating the direction of the "staples" effect vertically. The effect is achieved by moving odd-numbered lines from right to left and even-numbered lines from left to right.

The effect is achieved by moving odd-numbered lines from right to left and even-numbered lines from left to right. For odd-numbered lines (with an index j), the ((j + i) % 2 == 0) condition is satisfied. In this case, the line width is set to i, resulting in the line moving from left to right. For even-numbered lines, the ((j + i) % 2 == 0) condition is not satisfied. The line width is set to $(tput cols) - i, causing the line to move from right to left. This alternating direction of movement creates a twisted visual effect as the lines appear to move in opposite directions. The code runs in a continuous loop, repeatedly updating the lines with changing background colors. There is a slight pause of 0.05 seconds between each iteration to control the speed of the animation.

Create a tar archive with all files of a certain type found in present dir and subdirs

Note: the tar archive must not exist in order to create it. If exists it will only be updated and no already existent files in present search will still remain in the tar archive. The update option has to be used instead of create because the command tar may be executed more than once depending on the number of arguments that find throws. You can see maximum number of arguments with 'getconf ARG_MAX'

Git diff last two commits

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list block devices

Shows all block devices in a tree with descruptions of what they are.

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