I wrote a small fortran program that I want to control with a bash script. The bash script builds a parameter file that is used by the fortran program. I want to make it so I can access the script from any directory on my computer. How do I do that? Or what key words should I search for to find the answer?

Thanks for the help

Whatever directory you put the script in, add it to the user's PATH, or else install the script in a directory already in the user's path (e.g. /usr/local/bin ?), the script will need to ensure that the parameter file is created where the user calling has permission to write to so /tmp, /var/tmp or ${HOME} are the usual choices, the Fortran program will therefore need to look in that pre-agreed location!