bmptopnm
Convert a BMP file into a PBM, PGM, or PNM image.
TLDR
Generate the PBM, PGM, or PNM image as output, for Windows or OS/2 BMP file as input
$ bmptopnm [path/to/file.bmp]
Report contents of the BMP header to stderr
$ bmptopnm -verbose [path/to/file.bmp]
Display version
$ bmptopnm -version
