vibol hou

Archive for September 2009

Uninstalling MacPorts

In Snippets on 19 September 2009 with no comments

Having upgraded to Snow Leopard, I wanted to wipe out my MacPorts installation and start clean. I’ve had tons of stuff installed and updated from the past (three versions of each port, in fact). Here’s how to uninstall MacPorts.
The first step is to uninstall all the installed ports:
1sudo port -f uninstall installed
Then remove any trace [...]

Three steps to uninstalling MySQL on Mac OS X

In Snippets on 19 September 2009 with no comments

Here are three simple steps to uninstall the MySQL installation provided by MySQL.com. You should take care with these commands since a typo can obliterate portions of your OS, requiring a reinstall. If you’re comfortable with shell commands and understand what’s being done, here are the commands:
123sudo rm -rf "/usr/local/mysql*"
sudo rm -rf "/Library/StartupItems/MySQLCOM/"
Go to System [...]

How to find total file size in Linux

In Snippets on 7 September 2009 with no comments

DOS sums up the sizes of all the files it lists when using the dir command, but Linux ls does not. Here’s an awk script that will calculate that information.
1ls -la [filenames] | awk ‘{ sum += $4 } END { print sum }’
An easier command (thanks Sunny):
1du -hs * –total