Commands by opertinicy (3)

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Show in a web server, running in the port 80, how many ESTABLISHED connections by ip it has.
The command could show you all conecctions if you skip "grep ESTABLISHED"

convert filenames in current directory to lowercase

unrar all part1 files in a directory

Sort lines using the Xth characted as the start of the sort string
Tells sort to ignore all characters before the Xth position in the first field per line. If you have a list of items one per line and want to ignore the first two characters for sorting purposes, you would type "sort -k1.3". Change the "1" to change the field being sorted. The decimal value is the offset in the specified field to sort by.

Blank/erase a DVD-RW

Get first Git commit hash
git log --format=%H | tail -1 doesn't work anymore

Google text-to-speech in mp3 format
EDIT: command updated to support accented characters! Works in any of 58 google supported languages (some sound like crap, english is the best IMO). You get a mp3 file containing your query in spoken language. There is a limit of 100 characters for the "q" parameter, so be careful. The "tl" parameter contains target language.

Include a remote file (in vim)
Like vim scp://yourhost//your/file but in vim cmds.

Generate hash( of some types) from string
No need to install yet another program when openssl is already installed. :-)

Find broken symlinks
To understand why this is the equivalent of "find -L /path/to/search -type l, see http://ynform.org/w/Pub/FindBrokenSymbolicLinks or look at http://www.gnu.org/software/findutils/manual/html_mono/find.html


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