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Test Your Knowledge in Computers #233
Difficulty: Easy
The goal of ARPANET, the precursor to the global Internet, was to exploit new computer technologies to meet the needs of military command and control against nuclear threats, achieve survivable control of US nuclear forces, and improve military tactical and management decision making.
True or False?
Linux & Unix Commands - Search Man Pages

fstopgm(1) [opensolaris man page]

fstopgm(1)                                                    General Commands Manual                                                   fstopgm(1)

fstopgm - convert a Usenix FaceSaver(tm) file into a portable graymap SYNOPSIS
fstopgm [fsfile] DESCRIPTION
Reads a Usenix FaceSaver(tm) file as input. Produces a portable graymap as output. FaceSaver(tm) files sometimes have rectangular pixels. While fstopgm won't re-scale them into square pixels for you, it will give you the precise pnmscale command that will do the job. Because of this, reading a FaceSaver(tm) image is a two-step process. First you do: fstopgm > /dev/null This will tell you whether you need to use pnmscale. Then use one of the following pipelines: fstopgm | pgmnorm fstopgm | pnmscale -whatever | pgmnorm To go to PBM, you want something more like one of these: fstopgm | pnmenlarge 3 | pgmnorm | pgmtopbm fstopgm | pnmenlarge 3 | pnmscale <whatever> | pgmnorm | pgmtopbm You want to enlarge when going to a bitmap because otherwise you lose information; but enlarging by more than 3 does not look good. FaceSaver is a registered trademark of Metron Computerware Ltd. of Oakland, CA. SEE ALSO
pgmtofs(1), pgm(5), pgmnorm(1), pnmenlarge(1), pnmscale(1), pgmtopbm(1) AUTHOR
Copyright (C) 1989 by Jef Poskanzer. 06 April 89 fstopgm(1)

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