Commands by joeheyming

Commands by joeheyming (4)

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Don't like the cut command? Tired of typing awk '{print $xxx}', try this

Show Sample Output
This is sample output - yours may be different.
```
# ap () { awk '{print $'$1'}'; }
# echo hi there | ap 2
there
```
2

awp () { awk '{print $'$1'}'; }

joeheyming · 2014-08-15 16:21:49 9
Open/Close your co-worker's cd player

Ssh to your co-worker's box and watch them go crazy when the cd player ejects Show Sample Output
This is sample output - yours may be different.
```
<No output>
```
0

while true; do eject && sleep `expr $RANDOM % 5` && eject -t; done;

joeheyming · 2013-01-10 18:40:50 4
Simulate typing but with mistakes

The output will show jerk, then wonderful person since echo parses the \b character. Show Sample Output
This is sample output - yours may be different.
```
You are a wonderful person
```
4

echo -e "You are a jerk\b\b\b\bwonderful person" | pv -qL $[10+(-2 + RANDOM%5)]

joeheyming · 2013-01-09 19:18:07 9
Tweet your status from the command line

Get twurl: sudo gem install twurl Create a twitter app with write permissions: http://twitter.com/oauth_clients Setup twurl to do oAuth twurl authorize --consumer-key some_key_without_quotes --consumer-secret some_secret_without_quotes # goto the url you see and paste the PIN in the command line Then you can tweet the above command Using twurl to do oAuth
This is sample output - yours may be different.
0

twurl /1/statuses/update.json -d status="$1"

joeheyming · 2013-01-09 18:59:12 5

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Prints new content of files

Useful to e.g. keep an eye on several logfiles.

Delete all but the latest 5 files, ignoring directories

scping files with streamlines compression (tar gzip)

it compresses the files and folders to stdout, secure copies it to the server's stdin and runs tar there to extract the input and output to whatever destination using -C. if you emit "-C /destination", it will extract it to the home folder of the user, much like `scp file user@server:`. the "v" in the tar command can be removed for no verbosity.

pipe output to notify-send

Route output to notify-send to show nice messages on the desktop, e.g. title and interpreter of the current radio stream

Destroy all disks on system simultaneously

This command will use the fdisk utility to find all block devices on your system, and overwrite them with data from the /dev/urandom non-blocking random number generator. CAUTION: This will irrevocably erase EVERY SINGLE physical block storage device visible to the fdisk utility, including plugged USB devices, RAID sets, LVM, etc.

Arch Linux: Always install software without asking

Adding this alias to ~/.bashrc or, better yet, the system-wide /etc/bash.bashrc (as in my setup) will make it possible to not only run pacman as any user without needing to prepend sudo but will also ensure that it always assumes that the user knows what he or she is doing. Not the best thing for large multi-user enterprise setups at all to say the least, but for home (desktop) use, this is a fantastic time-saver.

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

A command's package details

In Debian based distros, this command will list 'binutils' package details which contains 'nm' command. You can replace 'nm' to any other command.

Backup your OpenWRT config (only the config, not the whole system)

You only have to fill in your administrative account and password, and the router FQDN! I recommand to execute this command not over the internet, because there is no encryption (the username and password will be transmitted in plaintext!)

locate bin, src, and man file for a command

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