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Generate an XKCD #936 style 4 word password
4 random words are better than one obfuscated word http://xkcd.com/936/

Find all active ip's in a subnet

Colorizes an access log
Puts a splash of color in your access logs. IP addresses are gray, 200 and 304 are green, all 4xx errors are red. Works well with e.g. "colorize access_log | less -R" if you want to see your colors while paging. Use as inspiration for other things you might be tailing, like syslog or vmstat Usage: $ tail -f access.log | colorize

lotto generator
note the xargs at the end

Find all files of a type and copy them elsewhere while keeping intact their full directory structure using find and cpio
.flac is the filetype. /Volumes/Music/FLAC is the destination.

clear the X clipboard
Clears your clipboard if xsel is installed on your machine. If your xsel is dumb, you can also use $xsel --clear --clipboard

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.

Exclude inserting a table from a sql import
Starting with a large MySQL dump file (*.sql) remove any lines that have inserts for the specified table. Sometimes one or two tables are very large and uneeded, eg. log tables. To exclude multiple tables you can get fancy with sed, or just run the command again on subsequently generated files.

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.

The command used by applications in OS X to determine whether a plist is "good". from Ed Marczak.
The check an entire folder is a one-liner: plutil -lint * | grep -v OK$ from Ed Marczak


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