Commands by r3tro (1)

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easily convert one unit to another
Easily convert units of similar measurement. May also be invoked alone, units.

Detect encoding of a text file
This command gives you the charset of a text file, which would be handy if you have no idea of the encoding.

Simple Video Surveillance by email
This takes a picture (with the web cam) every 5 minutes, and send the picture to your e-mail. Some systems support mail -a "References: " so that all video surveillance emails are grouped in a single email thread. To keep your inbox clean, it is still possible to filter and move to trash video surveillance emails (and restore these emails only if you really get robbed!) For instance with Gmail, emails sent to [email protected] can be filtered with "Matches: DeliveredTo:[email protected]"

find the 10 latest (modified) files
order the files by modification (thanks stanishjohnd) time, one file per output line and filter first 10

disable caps lock
a quick one-line way to disable caps lock while running X.

print offsets of file disk for losetup/loop-mount
If you want to mount partitions of an disk image, you need the offsets and sizes of the partitions. This command prints them in the format that losetup understands.

convert filenames in current directory to lowercase
The simplest way I know.

Sort file greater than a specified size in human readeable format including their path and typed by color, running from current directory
1. find file greater than 10 MB 2. direct it to xargs 3. xargs pass them as argument to ls

see the TIME_WAIT and ESTABLISHED nums of the network
see the TIME_WAIT and ESTABLISHED nums of the network

retrieve the source address used to contact a given host
on multihomed hosts, connected to several networks, could be usefull to know the source address (local ip address) used to reach the target host, this command does not require root priviledges. The command use a TCP socket, if there is any error the command return an empty string, elsewhere return a valid ip address.


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