Commands tagged reverse dns (3)

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gag version of current date

create ICO file with more than one image
requires imagemagick. -background transparent is of course optional.

Numeric zero padding file rename
This uses Perl's rename utility (you may have to call it as prename on your box) and won't choke on spaces or other characters in filenames. It will also zero pad a number even in filenames like "vacation-4.jpg".

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"

Lookup your own IPv4 address

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

run complex remote shell cmds over ssh, without escaping quotes
It executes commands as arguments to ssh, avoiding problematic shell expansions, without the need of writing the commands in question to a temporary file, just reading them from STDIN.

Change MySQL Pager For Nicer Output

Figure out what shell you're running

Number of CPU's in a system
this works for a Linux based system, other UNIX systems may have other way(s) to check the number of CPUs.


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