Commands by casueps (2)

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Retrieve the size of a file on a server
- Where $URL is the URL of the file. - Replace the $2 by $3 at the end to get a human-readable size. Credits to svanberg @ ArchLinux forums for original idea. Edit: Replaced command with better version by FRUiT. (removed unnecessary grep)

check open ports without netstat or lsof

Set up alarm with fade-in, for graceful awakening
There are a lot of commands, which invokes your player at specified time. But I prefer not to jump from by bed, when alarm start to play. Instead, this script increases volume of mpd over time, which much more pleasant when you just woke up :)

FizzBuzz one-liner in Python
A common programming question for interviewers to ask potential job candidates is to code "FizzBuzz". That is, if a number is divisible by 3, then it should display "Fizz". If a number is divisible by 5, it should display "Buzz". If it is divisible by both, then it should display "FizzBuzz". Otherwise, display the current number between 1 and 100.

create a simple version of ls with extended output
create a short alias for 'ls' with multi-column (-C), file type syntax additions (slashes after directories, @ for symlinks, etc... (-F), long format (-l), including hidden directories (all ./, ../, .svn, etc) (-a), show file-system blocks actually in use (-s), human readable file sizes (-h)

Display email addresses that have been sent to by a postfix server since the last mail log rollover
This assumes your mail log is /var/log/mail.log

Copy text to the clipboard
Great for little scripts that dig up obscure info that you are going to have to paste into another app anyway.

Delete an IPtable rules based on row number

Start screen with name and run command
Runs an instance of screen with name of "name_me" and command of "echo "hi"" To reconnect to screen instance later use: screen -r name_me

find established tcp connections without using netstat!!
Fast and easy way to find all established tcp connections without using the netstat command.

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