intellectual fx

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 [...]

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 [...]