Posted on August 31, 2010, 10:25 pm, by Aaron Johnson.
Recently, I needed to install Ubuntu on a Dell XPS 630i. There was one irritating problem: the installation cd would consistently freeze just after selecting “Install Ubuntu” from the main menu, leaving me with a blinking white cursor and the inner turmoil that can only be experienced while wondering whether your computer is actually doing [...]
Posted on October 13, 2009, 3:26 pm, by Aaron Johnson.
Quoting TheOneKEA at http://www.linuxquestions.org/questions/linux-general-1/keeping-a-process-running-after-disconnect-150235/: nohup is what you want – it’s a wrapper that blocks the SIGHUP signal sent to all applications connected to a terminal when that terminal is closed by the shell. Just ssh into the box and start the command using this syntax: [user@remoteboxen user]$ nohup /path/to/command arguments & The man page [...]
Posted on September 11, 2009, 8:53 am, by Aaron Johnson.
Any time there is a kernel update, you would do well to rebuild the VirtualBox kernel module to ensure compatibility with your new kernel version. This can be done by executing the following command from the terminal: sudo /etc/init.d/vboxdrv setup
Posted on September 10, 2009, 1:25 pm, by Aaron Johnson.
First, you can find some good free font downloads at http://www.sostars.com. I downloaded a stencil font called “Ver Army.” I unzipped the file, and found a .ttf font file. I learned how it install it from this page. Here’s a summary: To install Microsoft Windows fonts: sudo apt-get install ttf-mscorefonts-installer To install Red Hat Liberation [...]
Posted on August 17, 2009, 9:36 pm, by Aaron Johnson.
sed -r ‘s/\t+/,/g’ sed invoke the stream editor -r use extended regular expressions (similar to using the -E argument for grep). This gives meaning to the ‘+’ character in my regex. s tells sed that we are doing a replacement (“substitution”) operation \t+ find occurrences of one or more tab characters , replace it with [...]
Posted on April 13, 2009, 11:55 am, by Aaron Johnson.
This is the shell script I wrote to help me perform the analysis I did for Quest 5. 1. Perform a site:yoursite.edu search in Google, displaying 100 results per page. 2. Save each page (Google will only give you 10 at most) into a folder named yoursite.edu 3. Download the shell script to the directory [...]