Muffinresearch Labs by Stuart Colville

Parallels tip: Pause VMs to conserve resources | 0 Comments

Posted in Snippets on 23rd May 2007, 10:19 pm by

In more recent versions of Parallels they’ve added a “Pause” action in addition to “suspend”. If you like to run a whole bunch of VMs at once, pause will near instantaneously put on hold the execution of the VM thus reducing the CPU usage for a single VM from around 40% to around 5%. This is better than leaving the VM runnning in the background when you’re not using it. Confusingly the older version’s ‘Suspend’ action had the pause icon, whereas the current dev build doesn’t have an icon for suspend at all?!

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GNU screen: open tab in current working directory|(1)

A nice trick for having screen open a new tab in the same directory as the one you’re currently in. To use it add it to your .screenrc

# Open new window in current dir.
bind c stuff "screen -X chdir \$PWD;screen^M"
bind ^c stuff "screen -X chdir \$PWD;screen^M"

Hat tip: mteckert on SuperUser.com

Ubuntu: add-apt-repository: command not found|(3)

When you’re using a minimal Ubuntu install if you find the ‘add-apt-repository’ command is missing (it’s useful for adding PPAs and other repositories), then simply run:

sudo apt-get install python-software-properties

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