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 3
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 7
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 12
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 3

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Delete leading whitespace from the start of each line

Removes any whitespace characters at the beginning of a line.

Display summary of git commit ids and messages for a given branch

Useful when quickly looking for a commit id from a branch to use with git cherry-pick.

get colorful side-by-side diffs of files in svn with vim

This will diff your local version of the file with the latest version in svn. I put this in a shell function like so: $svd() { vimdiff

Reads a CD/DVD and creates an dvdisaster iso image with the advanced RS02 method.

copy with progress bar - rsync

-r for recursive (if you want to copy entire directories) src for the source file (or wildcards) dst for the destination --progress to show a progress bar

Remove multiple same rpm packages

If somehow if you get more than 1 same name rpm package install, then it cannot be removed by using simple rpm -e as it gives you more than one rpm matches error. The --matches will help to remove all the same name rpm packages.

Find broken symlinks

This is much safer than using -L, because it will not follow links that point to places outside the target directory subtree (CWD, in this case). See here for explanation: http://unix.stackexchange.com/a/38691/9382

a shell function to print a ruler the width of the terminal window.

A similar version for Bash that doesn't require cut and shortens the function in a few places. And it uses local variables. (similar to a version by eightmillion in a comment on the another version)

Reuse last parameter

Reuse the last parameter of the previous command line

Empty a file

Stay in the loop…

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