dan wrote: I'm on Fedora Core 4 OS... e.g. export CLASSPATH=/home/username results in a *temporary* CLASSPATH. If I close the terminal window and open a new one the command echo $CLASSPATH results in no CLASSPATH(!) The command env shows that there is no CLASSPATH env variable. I guess I need to *add* the env variable CLASSPATH for e.g. the username. How do I do that? Add the command to ~/.bash_profile You will need to log out and back in again for this to take effect. Paul. Paul, >Add the command to ~/.bash_profile I'm a newbie so I don't know how to that! My bash_profile looks like this: # Startup file for bash login shells. # default_dir=/usr/local/lib/ if [ -n "$PS1" ]; then PS1='\u@\h(\#)\$ ' IGNOREEOF=3 fi LOGIN_SHELL=true # If the user has her own init file, then use that one, else use the # canonical one. if [ -f ~/.bashrc ]; then . ~/.bashrc elif [ -f ${default_dir}Bashrc ]; then . ${default_dir}Bashrc; fi /dan