Splits the file "my_file" every 500 lines. Will create files called xx01 xx02 and so on. You can change the prefix by using the -f option. Comes in handy for splitting logfiles for example. I am using it for feeding a logfile parser with smaller files instead of one big file (due to performance reasons)

This one uses hex conversion to do the converting and is in shell/sed only (should probably still use the python/perl version).

Converts reserved characters in a URI to their percent encoded counterparts. Alternate python version: echo "$url" | python -c 'import sys,urllib;print urllib.quote(sys.stdin.read().strip())' Show Sample Output

The -r is for recursive, -F for fixed strings, --include='*.txt' identifies you want all txt files to be search any wildcard will apply, then the string you are looking for and the final * to ensure you go through all files and folders within the folder you execute it. Show Sample Output

Can be used in a working copy to output the URL (extracted from svn info), or as part of another function, as $(svnurl some/path). Saves a lot of time in my SVN workflow.

This command will transcode a MythTV recording. The target device is a Google Nexus One mobile phone. My recordings are from a HDHomerun with Over The Air content. Plays back nicely on the N1.

The first version printed: tr: empty string2 The second version printed: sed: -i may not be used with stdin Maybe I misunderstood the orginal problem.

More information about what homebrew is all about: http://github.com/mxcl/homebrew

This command will determine an individuals local weather, based on their I.P. address. I had to learn a lot about SED and a little about XMLStarlet in order to achieve this. This command is my original work and there is much room for improvement; I look forward to any constructive feedback. Show Sample Output

given lines of the form 123|XXXX|1000 ... 123|XXXX|1011 each 'XXXX' will be replaced with a serial number between 0001 and 0004. Show Sample Output

Get Google Reader unread count from the command line. You'll have to define your auth token with $auth Or use: curl -s -H "Authorization: GoogleLogin auth=$(curl -sd "Email=$email&Passwd=$password&service=reader" https://www.google.com/accounts/ClientLogin | grep Auth | sed 's/Auth=\(.*\)/\1/')" "http://www.google.com/reader/api/0/unread-count?output=json" | tr '{' '\n' | sed 's/.*"count":\([0-9]*\),".*/\1/' | grep -E ^[0-9]+$ | tr '\n' '+' | sed 's/\(.*\)+/\1\n/' | bc Show Sample Output

This replaces the current bash session with a new bash session, run as an interactive non-login shell... useful if you have changed /etc/bash.bashrc, or ~/.bashrc If you have changed a startup script for login shells, use exec bash -l Suitable for re-running /etc/profile, ~/.bash_login and ~/.profile. edit: chinmaya points out that env - HOME=$HOME TERM=$TERM bash -s "exec bash -l" will clear any shell variables which have been set... since this verges on unwieldy, might want to use alias bash_restart='env - HOME=$HOME TERM=$TERM bash -s "exec bash -l"'

Simple alternative to the previous submitted one

Have to do this once per output file, because if device is 'pdfwrite', even if 'gs' sees '%d' in the OutputFile it still only creates one single output file. Embed it into a simple shell script if you want to split a document out into one file for every page.

This is different that `who` in that who only cares about logged-in users running shells, this command will show all daemon users and what not; also users logged in remotely via SSH but are running SFTP/SCP only and not a shell. Show Sample Output

This shell function grabs the weather forecast for the next 24 to 48 hours from weatherunderground.com. Replace <YOURZIPORLOCATION> with your zip code or your "city, state" or "city, country", then calling the function without any arguments returns the weather for that location. Calling the function with a zip code or place name as an argument returns the weather for that location instead of your default. To add a bit of color formatting to the output, use the following instead: weather(){ curl -s "http://api.wunderground.com/auto/wui/geo/ForecastXML/index.xml?query=${@:-<YOURZIPORLOCATION>}"|perl -ne '/<title>([^<]+)/&&printf "\x1B[0;34m%s\x1B[0m: ",$1;/<fcttext>([^<]+)/&&print $1,"\n"';} Requires: perl, curl Show Sample Output

Will return temperature in Fahrenheit of a location (New York City in example). Uses a Google API. Show Sample Output

It works as a method applicated to a variable, converts the string variable into an array Show Sample Output