Changing Your csh Path
The path statement tells the shell where to look for commands, scripts, and programs. So if you issue a command, the path statement tells the system to look for the command in the named directories in a specific order. As the following steps show, you change your csh path by first identifying where your path statement is located, then editing the file that contains it (Code Listing 8.19).
Code Listing 8.19. Use grep to find the path statement in your configuration files.
To change your csh path: