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foreachpam
executable file
·44 lines (35 loc) · 1.75 KB
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foreachpam
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#! /bin/sh
# foreachpam - execute a program for each image of a PAM image stream
# Copyright (c) 2006-2022 Erik Auerswald <[email protected]>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
[ $# -gt 0 ] || { echo "foreachpam: usage: foreachpam PROG [PROGARGS]" 1>&2; \
exit 1; }
which pamsplit > /dev/null 2>&1 || \
{ echo "foreachpam: error: pamsplit not in PATH" 1>&2; exit 1; }
which "$1" > /dev/null 2>&1 || \
{ echo "foreachpam: error: $1 not in PATH" 1>&2; exit 1; }
dir="`mktemp -dt`" || \
{ echo "foreachpam: error: could not create temporary directory" 1>&2; \
exit 1; }
trap "rm -rf \"${dir}\"" 0
pamsplit - "${dir}/image%d.pnm" -padname=5 -quiet
for image in "${dir}"/image?????.pnm; do
"$@" < "$image"
done