[ibutho]

Hi and welcome to the forum.

1. You can install wget by doing
   

   #pkg_add -r wget

   or if you setup ports
   

   cd /usr/ports/ftp/wget/ && make install clean

2. AFAIK, export only works if you are using bash, zsh and similar shells. If you are using csh, then look at setenv.
3. For locate, try running "updatedb" to update the database
4. The service command is only for Red Hat based Linux distributions or their derivatives. Take a look here for info on how to start services.
5. You can install mysql by doing
   

   pkg_add -r  mysql50-server mysql50-client

   or if you configured ports
   

   cd /usr/ports/databases/mysql50-server/ && make install clean

Go through the handbook if you need to find out more info about how to use FreeBSD.