Math's hacks by mathatt sizone dott orgg Collection of my hacks/scripts written over time. Please feel free to use, or improve! Would love to hear you're using them, email me above.
Expand-virtdomains.pl	script to expandvirtual email fwd files for postfix
add	add/subtract columns in text files
alarm	set off ^G alarm at time
axel-mirror	mirror a webpage with axel
cidrmath.pl	add/subtract subnets from each othergiving contiguous results
cron-restart-job.sh	ensure a process is constantly running via cron
dbx2mbox.pl	Convert Outlook dbx files to mbox format
deurlify.pl	remove urls from html
dudiff	gives size differences of the du of two dir trees with shared hardlinked files
urlify.pl	%encode urls from binary/text ascii
dewpoint	convert dewpoint/temp to %relative humidity
dos2unix	convert dos CR LF files to unixLF
favicon.sh	create a favIcon from an image
ffmpegrec	script to record tv via video4linux with ffmpeg
image-link	creates a chain of images linked to next image in dir
list-vserver-ips2	show ips used in tree oflinux /etc/vserver dirs
mozbot.pl	hacked mozbot to eat SNIPS/NOCOL logs and alert channel
mp	play files with mplayer with options after each file
mp3dir	hack to help xmms play a web dir of mp3/ogg/etcfiles
mpg123stream	record a streaming radio program to files on disk
oldfiles.sh	find disk space taken up by dirs with newest file in dir older than date (deletion candidates)
pinglist	pinglist of ips or hostnames, find fastest ping
post-track.pl	track postfix msgs byID
raid-thrash.sh	thrash a raid array (by adding/removing slices) nicely for benchmarking
ruler	draws a 'ruler' on screen to aid in counting character positions, fits any size terminal
split-into-backref.pl	splita multi-line records file into others based on perl macro
streamGrabba.sh	grab an mp3 stream todisk
vmstatpage	very simple script to add machine ID, date, etc to vmstat 'page' based output
zap	kill procs matching pattern(like sunOS 4.x's zap)