Using Multi-Byte Character Sets in PHP (Unicode, UTF-8, etc)
Using PHP pspell Spell Check Functions with a Custom Dictionary
Changing Mailman Python Scripts for Virtual Host Support
Native Linux Space Warfare: Freespace 2
Getting Set up with Ogre 3D on Ubuntu
Development Resource Project

Command-line PHP script to remove duplicates from bash history

Thursday, 29 November 12, 11:39 pm
compton
For some reason, the erasedups option for bash history appears to have stopped working. Until I work out why and fix it, I wrote this PHP script to perform the same function.
#!/usr/bin/php <?php $history = file('/home/compton/.bash_history'); $new_history = array(); for ($line = count($history) - 1; $line >= 0; $line--) { if (array_search($history[$line], $new_history) === false) { $new_history[] = $history[$line]; } } file_put_contents('/home/compton/.bash_history', array_reverse($new_history));
It simply reads the current history file into an array, and creates a new array containing only the last occurrence of each history item which is then saved over the existing history file. I have it set to run every time my PC shuts down.

I don't know how long erasedups has not been working, Googling suggests it's not just me though. After running this script, the history file on one of my machines went from 10003 lines to 3746.
 
Leave Comment

/xkcd/ Luke

About This Page