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Router discovery

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Disco lights in the terminal
Looks best in an 80x24 256-color terminal emulator.

Read null character seperated fields from a file
Handle any bad named file which contains ",',\n,\b,\t,` etc Store the file name as null character separated list $find . -print0 >name.lst and retrieve it using $read -r -d "" Eg: $find . -print0 >name.lst; $cat name.lst| while IFS="" read -r -d "" file; $do $ls -l "$file"; $done

Detach a process from the current shell
Continue to execute the command in background even though quitting the shell.

Display GCC Predefined Macros
doesn't need /dev/null

Echo the latest commands from commandlinefu on the console
A Quick variation to the latest commands list with the new-lines skipped. This is faster to read.

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.

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Marks all manually installed deb packages as automatically installed.
An alternative without aptitude.


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