Commands by khashmeshab

Commands by khashmeshab (4)

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Random Beeps on Your Audio Card's Output

Sends random sounds to your sound card output (e.g. your speaker). Think... You can also run it remotely on another computer using SSH and scare its user!
This is sample output - yours may be different.
-5

dd if=/dev/urandom of=/dev/dsp

khashmeshab · 2010-10-27 09:25:02 4
Random Beeps on Your PC Speaker

Sends random beeps to your PC-speaker. Think... You can also run it remotely on another computer using SSH and scare its user! Don't forget to run it on your dedicated hosting server and watch sysadmin's action from data-center's live remote cameras!
This is sample output - yours may be different.
-5

dd if=/dev/urandom of=/dev/speaker bs=1

khashmeshab · 2010-10-27 09:22:40 8
Kill all Zombie processes (Guaranteed!)

It identifies the parents of the Zombie processes and kill them. So the new parent of orphan Zombies will be the Init process and he is already waiting for reaping them. Be careful! It may also kill your useful processes just because they are not taking care and waiting for their children (bad parents!). Show Sample Output
This is sample output - yours may be different.
```
No output. But if you want to see the PIDs of your Zombies' parents just use this piece:
ps -xaw -o state -o ppid | grep Z | grep -v PID | awk '{print $2}
```
11

kill -9 `ps -xaw -o state -o ppid | grep Z | grep -v PID | awk '{print $2}'`

khashmeshab · 2010-10-27 07:29:14 13
Kill all Zombie processes if they accept it!

Tested on FreeBSD 8.1 and CSH. The scripts works correctly but the Zombies do not die! I hope it will run and function as expected in Linux and others. Show Sample Output
This is sample output - yours may be different.
```
No output. But if you want to see the PIDs of your Zombies just use this piece:
ps -xaw -o state -o pid | grep Z | grep -v PID | awk '{print $2}'
```
1

kill -9 `ps -xaw -o state -o pid | grep Z | grep -v PID | awk '{print $2}'`

khashmeshab · 2010-10-27 07:19:52 4

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Reboot machine when everything is hanging

If the machine is hanging and the only help would be the power button, this key-combination will help to reboot your machine (more or less) gracefully. R - gives back control of the keyboard S - issues a sync E - sends all processes but init the term singal I - sends all processes but init the kill signal U - mounts all filesystem ro to prevent a fsck at reboot B - reboots the system Save your file before trying this out, this will reboot your machine without warning! http://en.wikipedia.org/wiki/Magic_SysRq_key

Change wallpaper for xfce4 >= 4.6.0

Simply changes the wallpaper of xfce4 from the command line. Not for multiple displays.

Display IPs accessing your Apache webserver.

locate bin, src, and man file for a command

show installed but unused linux headers, image, or modules

will show: installed linux headers, image, or modules: /^ii/!d avoiding current kernel: /'"$(uname -r | sed "s/$.*$-$[^0-9]\+$/\1/")"'/d only application names: s/^[^ ]* [^ ]* $[^ ]*$.*/\1/ avoiding stuff without a version number: /[0-9]/!d

Capture FTP Credentials and Commands

set wallpaper on windowmaker in one line

set directly the wallpaper on windowmaker , use this command with display of imagemagick :)

random git-commit message

Do a git commit using a random message.

Rename files in batch

Backup a local drive into a file on the remote host via ssh

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