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List all certified agents on the current puppet master
This is sample output - yours may be different.
0

puppet cert -la

narven · 2014-06-28 18:52:00 6
Create an animated gif from pictures
This is sample output - yours may be different.
0

convert -delay 20 -loop 0 *.jpg myimage.gif

ale3andro · 2015-02-04 21:44:13 9
attach to bash shell in the last container you started
This is sample output - yours may be different.
0

dockexecl() { docker exec -i -t $(docker ps -l -q) bash ;}

Dentorman · 2015-11-20 04:48:12 10

Block all traffic from an Autonomous System (AS) Network (e.g. Facebook)

Retrieves AS route prefixes for IPv4 and IPv6, aggregates the routes to the minimal set, and adds netfilter rules to reject them. Relies on two helpers: IPv4 - "aggregate" by Joe Abley (package name 'aggregate'), IPv6 - "aggregate6" by Job Snijders ( https://github.com/job/aggregate6 ) Show Sample Output

ASN=32934; for IP in 4 6; do whois -h riswhois.ripe.net \!${IP/4/g}as${ASN} | sed -n '2 p' | tr \ \\n | aggregate${IP/4/} | while read NET; do ip${IP/4/}tables -I INPUT -S ${NET} -j REJECT; done; done

iam_TJ · 2016-05-29 09:45:34 10

Download first mp3 file linked in a RSS feed
This is sample output - yours may be different.
0

wget `curl -s <podcast feed URL> | grep -o 'https*://[^"]*mp3' | head -1`

tbon3r · 2017-07-16 23:02:03 25
Allows incoming traffic from specific IP address to port 80
This is sample output - yours may be different.
0

sudo ufw allow proto tcp from 1.2.3.4 to any port 80

patko · 2009-02-26 12:15:10 6
function for copy files with progress bar (using pv - pipe viewer)

dont have to type new file name (it copy file under same name) and dont have to use '/' in the end of destination folder (but you can if u want, its idiot proof) Show Sample Output
This is sample output - yours may be different.
```
cp_p bigfile.iso /tmp

249MB 0:00:25 [9,88MB/s] [=====================================================>] 100%
# note its as fast as cp is, but I have crappy pc so dont look at my speed rate :)
# if u want copy file under other name u have to change code a little
```
0

cp_p() { if [ `echo "$2" | grep ".*\/$"` ]; then pv "$1" > "$2""$1"; else pv "$1" > "$2"/"$1"; fi; }

chmurli · 2010-10-21 10:54:07 4
find files ending in *.log that contain both 'foo' and 'error'
This is sample output - yours may be different.
0

grep -l foo $(grep -l error *.log)

dlebauer · 2011-01-10 20:04:28 3
count processes with status
This is sample output - yours may be different.
0

ps axu | awk '{if (NR <=7) print; else if ($8 == "D") {print; count++} } END {print "Total status D: "count}'

eneko · 2011-03-21 04:32:56 3
Arch Linux sort installed packages by size
This is sample output - yours may be different.
0

pacman -Qi $(pacman -Qq)|grep 'Name\|Size'| cut -d: -f2 | paste - - | column -t | sort -nk2

minus · 2011-05-03 13:02:06 4
Add spacer to left side of Dock

Insert an additional (moveable) spacer on the left side of the Dock in Mac OS X
This is sample output - yours may be different.
0

defaults write com.apple.dock persistent-apps -array-add '{tile-data={}; tile-type="spacer-tile";}'; killall Dock

ratonovitch · 2011-07-26 02:03:29 5
Convert from hexa to decimal
This is sample output - yours may be different.
0

hexdec() { bc <<< "obase=10; ibase=16; $1"; }

unixmonkey28771 · 2011-12-22 04:40:54 3
shorten one URL with an alias that you choose; type "tinyurl URL ALIAS"

command "tinyurl google.com 123google" --> tinyurl.com/123google redirects to google Show Sample Output
This is sample output - yours may be different.
```
none at all
```
0

tinyurl () { URL="$1";ALIAS="$2"; curl -s 'http://tinyurl.com/create.php?source=indexpage&url='"$URL"'&submit=Make+TinyURL%21&alias='"$ALIAS" >/dev/null ;}

patrick_1994 · 2012-11-03 17:37:00 4
Convert JSON to YAML
This is sample output - yours may be different.
0

perl -MYAML -MJSON -0777 -wnl -e 'print YAML::Dump(decode_json($_))' package.json

ishiduca · 2013-09-23 02:37:33 40
Generat a Random MAC address

minor improvement, added newline at no cost. Show Sample Output
This is sample output - yours may be different.
```
33:05:DA:B0:DE:80
```
0

hexdump -n6 -e '/1 "%02X:"' /dev/random|sed 's/:$/\n/'

colavi · 2015-02-05 13:14:07 8
get ip of all running docker containers
This is sample output - yours may be different.
0

docker inspect --format "{{ .NetworkSettings.IPAddress }}" $(docker ps -q)

Dentorman · 2015-11-20 04:49:18 10
Pretty print a simple csv in the command line +header coloring +multiple files support
This is sample output - yours may be different.
0

function csv() { C=`echo -e '\e[0;31m'`; N=`echo -e '\033[0m'`; for i in $@; do column -s, -t < $i | sed "1 s|^$.*$$|$C\1$N|gi"; done; }; csv test*.csv

oso · 2016-07-24 21:14:52 17
Generate random password in Linux CLI

Generate a random password quickly in CLI using openssl Show Sample Output
This is sample output - yours may be different.
```
# openssl rand -base64 12
JtrhGNhRtwxoP24c
```
0

openssl rand -base64 12

alikhalil · 2017-07-18 07:13:32 20
Total Apache memory
This is sample output - yours may be different.
0

ps -C httpd -o rss --no-headers | awk '{SUM += $1} END {printf("%.0f\n",SUM/1024)}'

melib00 · 2017-09-01 15:16:36 18
free swap

free swap
This is sample output - yours may be different.
0

free -b | grep "Swap:" | sed 's/ * / /g' | cut -d ' ' -f2

opexxx · 2009-09-02 07:16:34 39
Trim png files in a folder
This is sample output - yours may be different.
0

for file in `ls *.png`; do convert -trim $file $file; done

adrienhaxaire · 2010-10-21 13:20:30 6
How many lines in your c project?
This is sample output - yours may be different.
0

find . -type f -name *.[ch] -exec wc -l {} \;

sch3m4 · 2011-05-03 13:16:00 14
all out

to be executed from root. this works well on most commercial unix systems, have not tried on linux systems.
This is sample output - yours may be different.
0

ps -fu userid | awk '/userid/{print $2}' | xargs kill

unxscorob · 2011-06-16 12:20:19 3
Add spacer to right side of Dock

Insert an additional (moveable) spacer on the right side of the Dock in Mac OS X
This is sample output - yours may be different.
0

defaults write com.apple.dock persistent-others -array-add '{tile-data={}; tile-type="spacer-tile";}'; killall Dock

ratonovitch · 2011-07-26 02:05:17 3
Convert a mp3 file to CBR 128 kbps high quality

This converts a mp3 file "infile" to a CBR 128 kbps high quality (according to Winamp) mp3 "128/outfile", joint-stereo, using LAME.
This is sample output - yours may be different.
0

lame -m j -V 4 -q 0 --lowpass 17 -b 128 --cbr "infile" "128/outfile"

unixmonkey28771 · 2011-12-22 04:49:22 4
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video thumbnail gallery

thumbnail gallery of video using totem

Turn shell tracing and verbosity (set -xv) on/off with 1 command!

Running this command turns shell tracing and shell verbose debugging on or off. Not only does it do that, it also uses your terminals builtin method of setting colors to make debugging much easier. It looks at the current shell options contained in the $- special bash variable and that lets this function set the opposite of the current value. So from the shell you could do a: $ setx; echo "y" | ( cat -t ) | echo "d"; setx and it will turn on debbuggin. This is an amazingly useful function that is perfect to add system-wide by adding it to /etc/profile or /etc/bashrc.. You can run it from the shell, and you can also use it in your shell scripts like my .bash_profile - http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html

Tells which group you DON'T belong to (opposite of command "groups") --- uses sed

special thanks to XwZ :)

Read Python logs with tracebacks in color

View an info page on a nice interface

Nice interface for an info page.

List only the directories

List docker volumes by container

Extract HTTP Passwords in POST Requests

Advanced python tracing

Trace python statement execution and syscalls invoked during that simultaneously

move you up one directory quickly

In bash, this turns on auto cd. If a command is just a directory name, it cd's into that directory.

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