Convert a full pathname to just a path.
Syntax dirname pathname
Prints all but the final slash-delimited component of a
string (presumably a filename).
If PATHNAME is a single component, dirname prints . (meaning the current directory)
Extract the path from the variable pathnamevar and store in the variable result using parameter expansion $( )
$ result=$(dirname "$pathnamevar")
"How beautiful the leaves grow old. How full of light and color are their last days" ~ John Burroughs
hash - Remember the full pathname of a name argument
ls - List information about File(s)
which - Show full path of commands
Equivalent Windows command: SET Parameters - get a full or partial pathname from a variable.