Commands by timrand

Commands by timrand (3)

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convert single digit to double digits

each number in a file name gets expanded to the number of digets provided as arg_1 of the arguments in rjust_file_nums. Put the funciton in the .bashrc file. Be sure to $ source ~/.bashrc so that the function will be accessible from bash. Show Sample Output
This is sample output - yours may be different.
```
$ ls
1i10.ogg
$ rjust_file_nums 3
$ ls 
001i010.ogg
```
2

function rjust_file_nums() {for i in *.ogg; do; mv $i `ruby -e "print ARGV.first.gsub(/\d+/){|d| d.rjust($1,'0')}" $i`; done}

timrand · 2012-05-19 15:41:06 6
convert single digit to double digits

each number in a file name gets expanded to the number of digets provided as arg_1 of the arguments in rjust_file_nums. Put the funciton in the .bashrc file. Be sure to $ source ~/.bashrc so that the function will be accessible from bash. Show Sample Output
This is sample output - yours may be different.
```
$ ls
1i10.ogg
$ rjust_file_nums 3
$ ls 
001i010.ogg
```
1

function rjust_file_nums(){for i in *.ogg; do; mv $i `ruby -e "print ARGV.first.gsub(/\d+/){|d| d.rjust($1,'0')}" $i`; done }

timrand · 2012-05-19 15:39:39 5
get ip and hostname for this computer

Creates an alias that reports your hostname and IP for you computer. Getting the quotes in an alias with awk commands can be a painful. Need uname and ifconfig--both are included in most unix distributions, I believe. Hope it is useful. Show Sample Output
This is sample output - yours may be different.
```
$ me
computer-host-name.local
10.0.1.5
```
0

alias me="echo '`ifconfig | grep inet | grep broadcast | awk '{print $2}'`' && uname -n"

timrand · 2011-10-30 19:36:42 5

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Sets shell timeout

Useful in root's .profile - will auto-logout after TMOUT seconds of inactivity. Close after `seconds` inactive. export TMOUT=seconds (unefunge)

Reduce PDF size

Decrypt exported android wallet keys for import into desktop client (LTC,FTC,BTC)

Connect-back shell using Bash built-ins

Connect-back shell using Bash built-ins. Useful in a web app penetration test, if it's the case of a locked down environment, without the need for file uploads or a writable directory. -- /dev/tcp and /dev/udb redirects must be enabled at compile time in Bash. Most Linux distros enable this feature by default but at least Debian is known to disable it. -- http://labs.neohapsis.com/2008/04/17/connect-back-shell-literally/

list files recursively by size

Watch movies in your terminal

requires mplayer

Check if you work on a virtual/physical machine in Linux

Command used to know if we are working on a virtual or physical machine. This command will use the dmidecode utility to retrieve hardware information of your computer via the BIOS. Run this command as root or with sudo.

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"

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"

monitor my process group tree

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