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Hi Scott, The behavior you describe sounds like the environmental variable file Gemenviron (or Gemenviron.profile for bash) is not being sourced in either your .cshrc or .bashrc file. http://www.unidata.ucar.edu/software/gempak/GEMPAK/Install_GEMPAK.html#gemenviron Be sure to check that NAWIPS points to the correct location, which on OS X systems will typically be /Users/gempak/NAWIPS/ rather than /home/gempak/NAWIPS/ -Michael > > I recently compiled GEMPAK on Mac OS X (Yosemite). The program compiled > correctly and I was able to use the program immediately after it > compiled. However, once I closed the terminal and reopened it, gempak > would no longer work. If I type in gdplot, for example, within the NAWIPS > directory it says command not found, even though I just used the program > moments earlier. > > Ticket Details =================== Ticket ID: FJZ-107469 Department: Support GEMPAK Priority: Normal Status: Open