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#!/bin/sh
#
# gsfilter.simple -- HP deskjet or similar sample filter
#
# Requires
# poppler (xpdf): pdftops
# ghostscript
# enscript
set -u
# define temporary files
infile="/tmp/infile.$$"
tempfile="/tmp/tempfile.$$"
outfile="/tmp/outfile.$$"
# choose your paper size
GSPAPER='letter'
#GSPAPER='a4'
PAPER='Letter'
#PAPER='A4'
# chose your printer device (run gs -h to see what is available)
GSDEVICE='cdjcolor'
# send the standard input to a temporary file
cat > "${infile}"
# figure out what type of file we are trying to print
fileinfo="$(file -b "${infile}")"
# take various actions depending on the type of file -- send
# results to a temporary postscript file
case "${fileinfo}" in
*ASCII*) enscript -M "${PAPER}" -o - "${infile}" > "${tempfile}" ;;
*PDF*) pdftops -paper 'match' "${infile}" - > "${tempfile}" ;;
*PostScript*) cat "${infile}" > "${tempfile}" ;;
*)
echo "Cannot print file of type ${fileinfo}" | \
enscript -M "${PAPER}" -o - > "${tempfile}"
;;
esac
# run the postscript through gs to produce device output in a file
echo 'quit' | gs -sOutputFile="${outfile}" -q -sPAPERSIZE="${GSPAPER}" -dSAFER \
-dNOPAUSE -sDEVICE="${GSDEVICE}" "${tempfile}" > /dev/null 2>&1
# send output file to standard out
cat "${outfile}"
# clean up
rm -f "${infile}" "${tempfile}" "${outfile}"
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