Command line snippet of the week: 53

31st of December, 2009

Last one of this year!

Need to mass extract several RAR archives from different folders? Create a file called “massunrar” in /usr/bin and paste the following content:

find . -type f -name *.r01 -exec unrar e {} \;
find . -type f -name *.part01.rar -exec unrar e {} \;
echo "Found files:"
find . -type f -name *.r01
find . -type f -name *.part01.rar

Be sure to chmod “massunrar” to make it executable:

chmod +x /usr/bin/massunrar

Run “massunrar” in the parent folder to let it search for rar files in all subdirectories and extract them.
More to follow next year!

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Command line snippet of the week: 52

24th of December, 2009

Need to have IP location information? Use:

curl -s "http://www.geody.com/geoip.php?ip=$(curl -s icanhazip.com)" | sed '/^IP:/!d;s/<[^>][^>]*>//g'

It returns with your IP information such as:

IP: 13.13.133.713 Location: Amsterdam, NOORD-HOLLAND, Netherlands   (N.V. XS4ALL)

Replace (curl -s icanhazip.com) to show a different IP than your own.

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Command line snippet of the week: 51

17th of December, 2009

Need to empty a file fast? Try:

> file.txt

Shortest emptier in town!

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