Commands by djsmiley2k

Commands by djsmiley2k (2)

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List contact infomation for Domain list

Nice neat feedback showing contact infomation for as many domains as you wish to feed it. I used a list of domains, each one on a new line as supplied by our registar, as we needed to check they were all upto date and back them up as we are updating them all.
This is sample output - yours may be different.
0

whois -H $(cat ./list_of_domains) | awk 'BEGIN{RS=""}/Registrant/,/Registration Service Provider:/ {print} END{print "----------------\n"}'

djsmiley2k · 2011-01-11 12:55:34 0
Bash alias for creating screen session containing IRSSI, named irssi, while checking if existing session is created

Bash alias for easy irssi within screen, attempts to attach to existing irssi session, if one exists, otherwise creates one - Including wipe for when system reboots and leaves "dead" session.
This is sample output - yours may be different.
3

alias irssi="screen -wipe; screen -A -U -x -R -S irssi irssi"

djsmiley2k · 2010-12-15 09:10:53 0

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Calculate sum of N numbers (Thanks to flatcap)

replaces "\n" with "+"

Show a prettified list of nearby wireless APs

Check if a string is into a variable

Returns true (0) if the string is into $var, or false (1) if not.

calculate the total size of files in specified directory (in Megabytes)

the command will calculate the size of hidden files

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"

Re-emerge all ebuilds with missing files (Gentoo Linux)

This loops through all installed ebuilds and checks if every file that should be installed is still there and if not adds it to emerge. It includes a verbose output to stderr too. If you have packages installed that have whitespace in their filenames you have to change the IFS to "newline".

Don't save commands in bash history (only for current session)

Only from a remote machine: Only access to the server will be logged, but not the command. The same way, you can run any command without loggin it to history. ssh user@localhost will be registered in the history as well, and it's not usable.

Find if $b is in $a in bash

How many days until the end of the year

What is my public IP-address?

Very effective, use only DNS protocol. The @ part is optional if you already set opendns servers as default ns servers.

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