An implementation of Unix dc and POSIX bc with GNU and BSD extensions. Finished, but well-maintained.
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#! /bin/sh
#
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2018-2021 Gavin D. Howard and contributors.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
usage() {
printf "usage: %s install_dir exec_suffix\n" "$0" 1>&2
exit 1
}
script="$0"
scriptdir=$(dirname "$script")
. "$scriptdir/functions.sh"
INSTALL="$scriptdir/safe-install.sh"
test "$#" -ge 2 || usage
installdir="$1"
shift
exec_suffix="$1"
shift
bindir="$scriptdir/bin"
for exe in $bindir/*; do
base=$(basename "$exe")
if [ -L "$exe" ]; then
link=$(readlink "$exe")
"$INSTALL" -Dlm 755 "$link$exec_suffix" "$installdir/$base$exec_suffix"
else
"$INSTALL" -Dm 755 "$exe" "$installdir/$base$exec_suffix"
fi
done