Macbook pro going to beginning/end of commad line on Terminal

Ctrl-A for beginning
Ctrl-E for end

Mac terminal does not load .bashrc

It loads .bash_profile.
So put your aliases there.

Sorting IP addresses

Where input_file contains one IP address per line.

sort -u -t . -k 1,1n -k 2,2n -k 3,3n -k 4,4n input_file

Wikimedia : preventing new account creation

In LocalSettings.php, add this :

# Prevent new user registrations except by sysops
$wgGroupPermissions['*']['createaccount'] = false;

Source

wikimedia prevent access

Source

Exercises to stop snoring

- Repeat each vowel (a,e,i,o,u) out loud for three minutes throughout day.
- Place the tip of your tongue behind your top front teeth. Slide your tongue backwards for 3 minutes a day.
- Close your mouth and purse your lips. Hold for 30 seconds.
- With mouth open, move jaw to the right and hold for 30 seconds. Repeat on left side.

Source

Mac switching between windows like windows alt-tab

For switching between applications : Command+Tab
For switching between windows of a single application : Command + ~(tilda)