Commands by sunny256 (3)

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Determine an image's dimensions
Simple use of ImageMagick identify function.

Calculate days on which Friday the 13th occurs (inspired from the work of the user justsomeguy)
Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale.

Clear mistyped passwords from password prompt
Type ^u at password prompt to clear a mistyped password.

See a full list of compiler defined symbols
From http://lists.debian.org/debian-devel/2001/01/msg00971.html .

Git diff last two commits
How about this one ?

Comparison between the execution output of the last and penultimate command
Useful for checking if there are differences between last and penultimate command.

List all open ports and their owning executables
Particularly useful on OS X where netstat doesn't have -p option.

List only directory names
This command would be useful when it is desirable to list only the directories. Other options Hidden directory $ ls -d .*/ Other path $ ls -d /path/to/top/directory/.*/ Long format: $ ls -ld */

Get a list of all browsable Samba shares on the target server.

url shortner using google's shortner api
First get a api key for google url shortner from here https://developers.google.com/url-shortener/ Then replace the API_KEY in the command


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