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|
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
: ${TMPDIR:=/var/tmp}
SHELLSFILE=$TMPDIR/shells-$$
cat > $TMPDIR/shells-$$ <<EOF
/bin/bash
/bin/csh
/bin/ksh
/bin/sh
/bin/tcsh
/bin/zsh
EOF
oclosev()
{
exec {v}>&-
}
iclosev()
{
exec {v}<&-
}
exec {v}>&1
echo $v
echo foo 1 >&$v
echo foo 2 >&$v
echo foo 3 >&$v
oclosev
exec {v}<$SHELLSFILE
echo $v
while read line <&$v
do
echo $line
done
iclosev
type oclosev
type iclosev
while read -r -u ${fd}
do
echo $REPLY
done {fd}<$SHELLSFILE
rm -f $SHELLSFILE
exit 0
|
