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multiline data block parse and CSV data extraction with perl
extract data in multiline blocks of data with perl pattern matching loop

Get all the keyboard shortcuts in screen
Displays a list of all the basic keyboard shortcuts in screen.

Find dead symbolic links
-L tells find to follow symbolic links, so -type l will only return links it can't follow (i.e., those that are broken).

Simple example of the trap command

Url Encode
It only encodes non-Basic-ASCII chars, as they are the only ones not well readed by UTF-8 and ISO-8859-1 (latin-1). It converts all * C3 X (some latin symbols like ASCII-extended ones) and * C2 X (some punctuation symbols like inverted exclamation) ...UTF-8 double byte symbols to escaped form that every parser understands to form the URLs. I didn't encode spaces and the rest of basic punctuation, but supposedly, space and others are coded as \x20, for example, in UTF-8, latin-1 and Windows-cp1252.... so its read perfectly. Please feel free to correct, the application to which I designe that function works as expected with my assumption. Note: I specify a w=999, I didn't find a flag to put unlimited value. I just suppose very improbable surpass the de-facto 255 (* 3 byte max) = 765 bytes length of URL

convert Decimal to IP from stdin
https://stackoverflow.com/questions/10768160/ip-address-converter

find out how many days since given date
You can also do this for seconds, minutes, hours, etc... Can't use dates before the epoch, though.

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

let the cow suggest some commit messages for you

Pipe text from shell to windows cut and paste buffer using PuTTY and XMing.
Set up X forwarding in PuTTY, with X display location set to :0.0 Launch PuTTY ssh session. Launch Xming. Make sure that display is set to :0.0 (this is default). $ echo "I'm going to paste this into WINDERS XP" | xsel -i will insert the string into the windows cut and paste buffer. Thanks to Dennis Williamson at stackoverflow.com for sharing...


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