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Rename all files in lower case
rename is a really powerfull to, as its name suggests, rename files

Print IP of any interface. Useful for scripts.

a function to find the fastest DNS server
http://public-dns.info gives a list of online dns servers. you need to change the country in url (br in this url) with your country code. this command need some time to ping all IP in list.

Report the established connections for a particular port

list block devices
Shows all block devices in a tree with descruptions of what they are.

Retry the previous command until it exits successfully

What is My WAN IP?
The curl command retrieve the HTML text containing the IP address. The grep command picks out the IP address from that HTML text.

Set executable permissions on a file under Subversion
This avoids the "chmod +x filename" after performing a check out or export. From http://snipplr.com/view/5277/set-executable-permissions-on-a-file-under-subversion/

Sort movies by length, longest first
handles file names with spaces and colons, fixes sort (numeric!), uses mplayer, same output format as other alternatives

create a progress bar...
A simple way yo do a progress bar like wget.


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