Recursively removes files or directories with a given name, using find.

I most frequently use it to remove 'CVS' or '.svn' directories from sourcepackages that still have the versioning information in them.

This adds your ssh public key to the authorized_keys on a remote server. The key file in the snippet is called id_dsa.pub, yours may have another name but this is standard for DSA encryption.

To learn more about ssh I heartly recommend this: SSH tips and tricks

This one-liner is great, it lists the commands you have used by popularity. At present, the 'cd' command wins in my history file with 140. Followed by ls (93) and ssh (56). What are your top 3 commands

Snippet source: ibm

I found this script online, and decided that I would modify it for my needs. As a developer, I like to know how many actual lines of code I have written--not including any comments.

It outputs in a very simple way:

Including Comments: NNN
Without Comments: NNN

One very practical, and quick, way to determine how many lines of code a project has is to pipe it through a find:


find /usr/share/php -name "*.php" -o -name "*.inc" | xargs count-code


If your code is in files of another type (i.e., .c, .h, .cpp, etc), then simply change the extensions and add more '-o -name "*.ext"' tags. If you have directories that you don't want to be counted, simple throw a "| grep -v [path/to/excluded/directory] |" inbetween the find and the xargs, and they will not be counted.

Flexible sorting algorithm based on Quicksort with extra functionality, such as:
- Direction (ie: ascending or descending)
- Sort-by-path (eg: item.name, item.name.firstName or item[5])
- Sorting function (returns true if two items are already sorted)
- Type checking
- All constants and support functions are members of the Sort() function
- Testsuite with hooks for cscript and in-browser javascript, so you can tweak and optimize, and make sure it still works
- Environment agnostic (can use with, say, SpiderMonkey or .Net's jsc)

An implementation of Gnome Sort in 9 lines of Redcode. Smaller and faster than Bubble Sort.

An implementation of Gnome Sort in 9 lines of Redcode. Smaller and faster than Bubble Sort. Speed increase of .5x^2-2.5x over version 1.

Small amount of bash shell code to produce terminal output. I use this to keep alive ssh connections where the server will automatically disconnect a session where input is not received for a small amount of time.
Needs: A terminal that understands ansi.sys escape codes. Most modern interactive terminals. You might have limited success on serial terminals.
CAVEAT: Admittedly

watch date

would do the same job - but is less fun.
In use I have this in a function in my .bashrc

function keepalive () {

}

how to handle arrays in bash

Parsing newline-delimited data records in bash is simple, if you have this odd redirect up your sleeve. An annoying thing about bash is that it usually equates all whitespace characters, so the first block in the snippet won't let you use a file linewise, but will end up echoing each whitespace-delimited token on a separate line.

bash provides the "read" builtin which can be used to differentiate between newlines and spaces.