mgrtopbm
converts MGR window system bitmap format to PBM
TLDR
Convert MGR bitmap to PBM
$ mgrtopbm [input.mgr] > [output.pbm]
SYNOPSIS
mgrtopbm [file]
DESCRIPTION
mgrtopbm converts MGR window system bitmap format to PBM. MGR was a windowing system developed at Bellcore in the late 1980s. Part of Netpbm toolkit.
