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Run bash on top of a vi session (saved or not saved), run multiple commands, instead of one at a time with :!(bashcommand), type exit and [enter] to get back to where you left off in vi.
Helps when I'm editing a script and want to double check some commands without having to exit out of vi multiple times or having to use another terminal session.

FizzBuzz in Perl
Just another FizzBuzz in Perl.

Synchronise a file from a remote server
You will be prompted for a password unless you have your public keys set-up.

Rename files in batch

Find the package that installed a command

Figure out what shell you're running

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.

execute a shell with netcat without -e
Shorter version with proper stderr redirection .

Generate MD5 of string and output only the hash checksum

Prefix every line with a timestamp
Useful to add a timestamp to every line printed to stdout. You can use `-Ins` instead of `-Iseconds` if you want more precision.


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