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For a Mac OS X Unix Tutorial see:

OSXFAQ - Technical News and Support for Mac OS X (http://www.osxfaq.com/Tutorials/LearningCenter/)

Some additional Unix tools for Mac OS X can be found here:
...

How about:


softwareupdate --list | egrep '^[[:space:]]*\*' | wc -l
# or
softwareupdate --list | awk 'BEGIN { num=0 }; /^[[:space:]]*\*/{ num+=1 }; END { print num }'

You can also get your external ip address with curl.


curl -L -s --max-time 10 http://checkip.dyndns.org | egrep -o -m 1 '([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}'

A dos2unix-like tool for the Mac may be found here:

OS X Apps > search: "newline" (http://osx.hyperjeff.net/Apps/apps?f=newline)

Cheers,
verno

For creating a regular user account from the command line interactively, try: Create & delete user accounts from the command line on Mac OS X (http://textsnippets.com/posts/show/1374)

Cheers,...

Maybe you have to use a patched rsync version on both sides?

See:

Mini-HOWTO: Fixing rsync on Tiger (Mac OS X 10.4.x) (http://www.lartmaker.nl/rsync/)

sudo port list | grep -i rsync
...

... or pman -- create, print, save, view PDF man pages (http://snippets.dzone.com/posts/show/4274)

Books "that explain how it all works, from the Unix point of view rather than GUIs":

Advanced Mac OS X Programming (http://www.borkware.com/corebook/)

Mac OS X Internals: The Book...

On Leopard you may use dtrace to add the functionality you're looking for:

DTrace Scripts | Collecting scripts and settings for DTrace-enabled developers (http://www.dtracescripts.com)

Top Ten...

"it will not even mount when plugged in"

Try to reset your Mac's NVRAM:

http://docs.info.apple.com/article.html?artnum=2238

A gui solution would be:

Compost
automatic trash management
http://www.mac-compost.com/


Cheers,
verno

Some more hints what Mac OS X has to offer:

Dumbarton
ObjC-C# bridging framework
http://www.imeem.com/developers.aspx
http://developer.apple.com/business/macmarket/imeem.html

Creating Mac OS...

And also check out some items listed here:


http://osx.hyperjeff.net/Apps/apps.php?f=integrated%20development%20environment


http://osx.hyperjeff.net/Apps/apps.php?f=mono

...

Maybe a login hook could do the trick?

sudo defaults write com.apple.loginwindow LoginHook /path/to/script

(For more information see http://www.bombich.com/mactips/loginhooks.html and...