I just finished writing my third e-book about Perl one-liners. Perl one-liners are small and awesome Perl programs that fit in a single line of code and they do one thing really well. These things include changing line spacing, numbering lines, doing calculations, converting and substituting text, deleting and printing certain lines, parsing logs, editing files in-place, and many more.

most common commands in linux/unix every one should know

You can direct grep to search through one file or many. You can also pipe in output from some other utility so that you’ll see only the information that you want to see. And, the fact that grep uses regular expressions allows you to perform searches even when you only have an approximate idea of what you’re searching for.

SCO Group wants a judge to overrule a jury that found it doesn’t own Unix. Or it wants a fresh trial. Either, really, as long as SCO gets the result it wants.

For the last 40 years, Unix operating systems have helped to power mission-critical IT operations around the globe. Now, as Unix enters middle age, its backers are busily developing the new specifications that they hope will carry the OS forward into the next age of computing

Like Vimperator for Firefox? Want something a bit smaller? Easier to config from plain text files? Well meet Uzbl.

This post is devoted to the art of spacing out and letting your eyes play tricks on you :)

1. Show/purge unused linux kernel images and modules:

dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d'