cd

The cd command changes the working directory. Called with no argument, cd will bring you to your $HOME directory. Note that cd changes the current working directory of only. Therefore, your plotting program will still be in the previous directory. To get around this difficulty, you only have to define a macro as follows, if your plotting program supports cd:

     macro Cd 1
         pmode cd "$1"
         &cd $1
     stop
     alias cd Cd

cd filename

     cd
     cd /nazgul/users/fulano

&, pwd, alias