#### 3.9.1 Basic usage for `prt`

The output provided by `prt` when no options are given is sufficient most of the time, and so it’s common to use it without any options:-

    prt s.umsp.c

The default output contains slightly more information than the output of `get -L`. If you require more detail, the `-e` (“everything”) option produces more detail:-

    prt -e s.umsp.c

As usual, any argument that is the name of a directory causes all SCCS files in that directory to be processed; the special argument `-` indicates that a list of SCCS files are to be read from `prt`’s standard input.