fstopgm
Convert a Usenix FaceSaver file into a PGM image.
See also: pgmtofs.
More information: https://netpbm.sourceforge.net/doc/fstopgm.html.
- Convert the specified Usenix FaceSaver file into a PGM image:
fstopgm path/to/input.fs > path/to/output.pgm