Commands tagged playlist (8)

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pngcrush all .png files in the directory
Nothing too magical here, just uses pngcrush to losslessly compress all your pngs!

power off system in X hours form the current time, here X=2

Create a new file

Blank/erase a DVD-RW

Extract your list of blocked images hosts from Firefox database
I use this to replicate my blocked images hosts list between work and home to keep my browsing ad-free.

regex for turning a URL into a real hyperlink (i.e. for posting somewhere that accepts basic html)
This should work with anything://url.whatever etc etc ;)

FInd the 10 biggest files taking up disk space
Often you need to find the files that are taking up the most disk space in order to free up space asap. This script can be run on the enitre filesystem as root or on a home directory to find the largest files.

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Get your external IP address if your machine has a DNS entry
Using DynDNS or a similar service not only allows access to your home machine from outside without needing to know what IP the ISP has assigned to it but it also comes in handy if you want to know your external IP address. The only purpose of the sed command is to remove the leading "host.na.me has address " part from the output. If you don't need to discard it you can simply use $ host $HOSTNAME

Syntax Highlight your Perl code
This uses Text::Highlight to output the specified Perl file with syntax highlighting. A better alternative is my App::perlhl - find it on the CPAN: http://p3rl.org/App::perlhl


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