/usr/share/votca/scripts/inverse/postadd_plot.sh is in votca-csg-scripts 1.3.0-3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | #! /bin/bash
#
# Copyright 2009-2011 The VOTCA Development Team (http://www.votca.org)
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
if [ "$1" = "--help" ]; then
cat <<EOF
${0##*/}, version %version%
postadd plot script, send a certain plot script to gnuplot
Usage: ${0##*/}
Used external packages: gnuplot
EOF
exit 0
fi
gnuplot=$(csg_get_property cg.inverse.gnuplot.bin)
[ -n "$(type -p $gnuplot)" ] || die "${0##*/}: gnuplot binary '$gnuplot' not found"
opts=$(csg_get_interaction_property --allow-empty inverse.post_add_options.plot.gnuplot_opts)
script=$(csg_get_interaction_property inverse.post_add_options.plot.script)
[[ -f $(get_main_dir)/$script ]] || die "${0##*/}: plot script '$script' is not in maindir"
what_to_kill="$(csg_get_interaction_property --allow-empty inverse.post_add_options.plot.kill)"
msg "Plotting '$script' using $gnuplot"
if [[ -z ${what_to_kill} ]]; then
[[ -z $(type -p flock) ]] && die "${0##*/}: could not find flock needed by gnuplot pipe"
[[ -z $(type -p mkfifo) ]] && die "${0##*/}: could not find mkfifo needed by gnuplot pipe"
(
flock -n 7 || exit 0 #see flock man page to understand this trick
cd $(get_main_dir)
rm -rf gnuplot_pipe gnuplot_pipe.log
msg "Creating gnuplot_pipe ..."
mkfifo gnuplot_pipe
while true; do
if read <gnuplot_pipe; then
echo -e "$REPLY"
echo -e "$REPLY" >> gnuplot_pipe.log
[[ $REPLY = "exit" ]] && break
fi
done | $gnuplot $opts &
while true; do
if [[ -z $(ps -o pid= -p "${CSG_MASTER_PID}") ]]; then
echo "exit" > $(get_main_dir)/gnuplot_pipe
rm -rf gnuplot_pipe gnuplot_pipe.log gnuplot_pipe.lock
exit
fi
sleep 1 #lowers the load
done &
sleep 1 #wait for gnuplot_pipe
cd - > /dev/null
) 7> $(get_main_dir)/gnuplot_pipe.lock
#gnuplot is in laststep, move to current one
echo "cd '$PWD'" > $(get_main_dir)/gnuplot_pipe || die "piping to gnuplot_pipe failed"
#name pipe accept only one command at the time, for i in $(cat ); do echo $i > pipe; done would do the same
echo "load '$(get_main_dir)/$script'" > $(get_main_dir)/gnuplot_pipe || die "piping to gnuplot_pipe failed"
else
[[ -z $(type -p killall) ]] && die "${0##*/}: could not find killall needed to kill gnuplot"
killall $what_to_kill
$gnuplot $opts "$(get_main_dir)/$script" || true #exit code not always clear
fi
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