For many web developers is may be helpful to run multiple instances of Chrome to test multiple user types at the same time without having to constantly login and logout. Here are examples of how to do this by launching Chrome from the command line.
Ubuntu
chromium-browser --user-data-dir=/home/$USER/.config/chromium-profile-test
Mac OS X - Lion
It is always a scary experience upgrading Ubuntu versions because it seems like about half of the time somethings goes wrong. (Although, to be fair, usually things are also fixed.) From my recent update from Ubuntu 11.04 to 11.10 my boot froze after the Checking Battery State [OK] status line.
Note: I could not get 5.2 and 5.3 running at the same time. I could only get them both installed so where I could quickly enable one or the other. I had to use a2enmod php5 and a2dismod php5 to turn PHP 5.2 on and off because PHP 5.3 would also take priority otherwise.
Most probably know this but I didn't. To remove the annoying terminal beep in Ubuntu 10.04 go to (In the terminal window):
Edit -> Profiles...
Edit the Default Profile
Uncheck the "Terminal bell"
Click the Close button
Done!
That was easy. Only needed to know where to look. And now no longer annoying beeps when I press the TAB button to get directory listings. Great!
If you have ever wanted to see what emails were being sent from your Ubuntu computer but did not want the emails to actually be sent then you are probably looking for a type of fake mail program. The one that I like is DevNullSMTP. The only problem is that I could not get it to work without a installing sendmail and then disabling the deamon. These were the steps that I had to do.
Steps:
Install sendmail-bin "sudo apt-get install sendmail-bin"
Turn off deamon using "sudo update-rc.d -f sendmail remove"
Reboot computer
Once again I am having trouble with the Ralink RT2860 chipset wireless card under Ubuntu. I have had an issue with this NIC since 9.04! The problem has been that the card would not connect to wireless networks and would keep asking for a password even though it had already been entered. The fix for 9.04 and 9.10, for me, is described in this forum post.
