Unix

Link: http://www.hackszine.com/blog/archive/2007/07/howto_reset_a_lost_os_x_passwo.html

HOWTO: Reset a lost OS X password

I've you've forgotten your Mac's admin account password, don't worry. Assuming you haven't locked out OpenFirmware, it's a pretty simple task to change your password back to something you know.

Here's how:

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Link: http://www.debian-administration.org/articles/457

Here's a nifty trick I've never heard of before. Saves the hassle of resetting a frozen linux box.

9. Sanely reboot a locked-up box

Rather than hitting the power button when something is dramatically
crashed, thus meaning that you have to wait though a fsck disk check
when the system boots back up, hold down Alt + Sysreq/Print Screen, and
press REISUB in turn (whilst continually holding down those keys).
Magic: your machine will reboot, after stopping all the programs and
syncing and unmounting the drives.

There are some other magic things that you can do with SysReq, as well -
it's worth looking up the documentation.

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a replacement for ls:

echo *

a replacement for cat:

while read line; do echo $line;done < file

My leetle play place. I'm still tinkering. Not sure what I want to do yet. Blog? maybe. Keep track of projects? ehm. nifty links I don't want to lose? maybe. stay tuned! or not!