If you want to dump DB from production or develop servers and not include cache table values for faster importing you can use below script. You need to change site_name variable and DUMPDIR to match what you have and also user/password of DB

If you need to copy DB, lets say from production to develop you can use this script and call it like "develclone.sh original_db cloned_db"
For faster cloning it will exclude cache tables data.

To delete stale CSS and JS files from server, you need to add

variable_set('drupal_stale_file_threshold', 86400);

to your settings.php and change the value from default 30 days (2592000) to for example 1 day above.
They will be deleted on cron run.

I have been getting  ERROR: Site [such] does not exist! when running 

sudo a2dissite "some virtual host"

You probably updated your server installation and one of the updates included the upgrade of Apache to version 2.4.x

zcat /Users/Marko/Downloads/file.sql.gz | mysql -u 'root' -p'password' your_database

just drop this line in your linux or mac and fill data you need to fill and wait :) or this for gz files

gunzip < /Users/Marko/Downloads/mydb.sql.gz | mysql -u root -p mydb

or for ZIP files

When I want to find something in GIT and see who and when removed some code I start to search GIT, best command combo is this.

 git log -S "$location['country_code']" -p

For current branch

In mysql 5.6+. Use this:

[mysqld]
general_log = on
general_log_file=/usr/log/general.log

in your my.cnf / my.ini file

We had on server this thing set
http-response set-header X-Frame-Options DENY

mysqldump -u user -p databasename > dump.sql

Then using SCP transfer the file to the remote server:

scp dump.sql user@remotehost.ip:

Then use the mysql client there to import the dump.sql with:

mysql -u user_name -p databasename < dump.sql

Using drush on mac with mamp gave me some problems with default setup. I didnt set
DRUSH_PHP variable anywhere so default php was used, also with that no php.ini setting was set and in my drush status I got empty "Drush configuration" variable. So to set this up, I needed to add this to either .profile or to .bash_profile (depends of load order, later goes first if you have it)