Fixing my Bash Prompt on OSX

I have been having a problem with the bash prompt. When I use the up and down arrows to scroll throw the history buffer, the output of the previous commands would get garbled and not line up. After messing around for 20 minutes I found a solution.

My old prompt:

PS1='\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[0;31m\]$(parse_git_branch_and_add_brackets)\[\033[00m\]\$ '

My new prompt:

PS1='\[\e[01;32m\]\u@\h:\[\e[01;34m\]\w\[\e[0;31m\]$(parse_git_branch_and_add_brackets)\[\e[0m\]$ '

Something about changing the \033 to \e works. Why? I don't know, if you do please comment.

BASH Prompt in OSX with git branch

I found others doing the same.

Here is the content of my ~/.profile.

function parse_git_branch_and_add_brackets {
git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\ \[\1\]/'
}

PS1="\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[0;31m\]\$(parse_git_branch_and_add_brackets)\[\033[00m\]\\$ "

Quickly rename files to lower case

Here is a simple bash oneliner to rename all folders/files in a directory to lower case

for old in * ; do new=`echo $old | tr "[[:upper:]]" "[[:lower:]"`; mv $old $new;  done;

Getting PHP's pcntl working on Snow Lepard

(make sure you've installed Apple's developer tools)


1. Check your version you have installed and download the PHP source code.

$ php -v
PHP 5.3.3 (cli) (built: Aug 22 2010 19:41:55) 
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
    with Xdebug v2.1.0, Copyright (c) 2002-2010, by Derick Rethans

$ curl -O http://us.php.net/distributions/php-5.3.3.tar.gz

2. unpack, phpize, configure, make, make install

$ tar -xzvf php-5.3.3.tar.gz
$ cd php-5.3.3/ext/pcntl/
$ phpize
$ ./configure
$ make
$ sudo make install

3. Add "extension=pcntl.so" to your /etc/php.ini

4. Confirm

$ php -i | grep pcntl
pcntl
pcntl support => enabled

Done