zone is an interactive compiled Lisp function.
It is bound to <menu-bar> <tools> <games> <zone>.
(zone)
Zone out, completely.

It’s basically an emacs screensaver/psychedelic ascii mode using your focused buffer for content. It obfuscates the buffer in ways which involves wrapping your code around the screen or swapping characters around, and even just turning it all into curly braces and wiggling. Press a key to undo it all. Might be a neat trick to play on a friend, but I see no other usage for this mode.

Obviously being a systems administrator it becomes your job to figure out what can go, what needs to stay, et al.

I’ve found that archived logs (logrotate) on a secure server often can be quite large. And on a low-end configuration with a server with only 40G it becomes a nuisance when you have a few Gb of data…
And you all probably know this, but Tim asked when I’d blog. So… I’ll make sure!
Having 40 or 50 files is a pain to manually delete. Sure, you could probably rm -f *.1 *.2 *.3 etc etc etc but that becomes too much of a pain.

On BSD systems there is an awesome counter called ‘jot’; it works exactly the opposite of the GNU command ‘seq’; so for a rudimentary example to remove all files it becomes a simple one liner–

• jot 6 1 |while read i; do rm -f *.${i};done
• seq 1 6|while read i; do rm -f *.${i};done

In Emeril fashion: BAM! You’re now out of the clear.

I needed to know
Is this Even or odd, hmm?
I used modulus

This is the simplest way to quickly find out if an integer is even or odd. I’m posting this because I don’t recall my programming lab TAs or professors ever mentioning this simple way to figure that out.

May it save you many lines of code and time!

Update: Suppose I should show an exampe

if ( (your-number % 2) == 0) { echo “that’s an even number” }