Like this:
mdconfig /path/to/iso
mount -t cd9660 /dev/mdX /mountpoint

X being md unit reported by mdconfig command.

After done with ISO unmount it and delete md created for it:
umount /mountpoint
mdconfig -d -u X

(Again X being md unit as reported during creation)

Using python from command line:
cat file.json | python -mjson.tool


Keep in mind this will sort keys in structures.

If you created and compiled unit tests using MonoDevelop you need to copy several dlls to the same directory before you can use nunit-console with compiled dll. Those libraries can be found /usr/local/lib/monodevelop/AddIns/NUnit directory

I don't have any idea if mono-tools is still supported package, but its build is badly broken at least on FreeBSD. Anyway, the only tool I find really useful there is monodoc, which luckily can be installed manually like this:

Group creation

pw groupadd name-of-group


To add users to group

pw groupmod name-of-group -m username1,username2,...,usernameN


NOTE: usernames in list are separated only by comma, you can't add space too.

Add something along the lines
hint.hdac.0.disabled=1
to the /boot/loader.conf

hdac being hw you want to prevent from attaching to, 0 being its unit.

In directory ~/.gconf/desktop/gnome/peripherals/mouse

After you update your OS and you forgot about this little quirk

edit /usr/local/bin/compiz-manager and change line saying
INDIRECT="no"
to
INDIRECT="yes"

UPDATE (2014-11-15):
Apparently this also depends on nvidia driver, so I am trying to keep the list of those I know work correctly, and those I know don't work correctly.

Working: 331.67, 331.113
Not working: 340.46, 343.22 (works most of the time, but sometimes get crazy), 346.22 similar to 343.22

You can create SOCKS proxy using ssh by running

ssh -D port [email protected]

replace port with port number you want proxy to appear on your local machine, in web browser choose SOCKS for proxy type, localhost for proxy server and same port as port in command above.

Like this
grant all privileges on db.* to 'user'@'host' identified by 'password';