mirror of https://github.com/n-hys/bash.git
75 lines
1.3 KiB
Plaintext
75 lines
1.3 KiB
Plaintext
# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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cd ${TMPDIR:=/var/tmp}
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rm -f u
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${THIS_SH} -c 'exec 10>&1; echo fd 10 >&10' 10>u
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cat u
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rm -f u
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${THIS_SH} -c 'exec 8>&1; echo fd 8 >&8' 8>u
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cat u
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rm -f u
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exec 10>u
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exec 10>&1; echo 'fd 10' >&10
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cat u
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rm -f u
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exec 10>&-
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exec 8>u
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exec 8>&1; echo 'fd 8' >&8
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cat u
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rm -f u
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exec 8>&-
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rm -f infile
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cat > infile <<EOF
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1
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2
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3
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4
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EOF
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exec 7<&0
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exec 10<infile
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exec 0<&10; cat <&10
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exec 0<&7
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exec 7<&-
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exec 7<&0
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exec 8<infile
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exec 0<&8 ; cat <&8
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exec 0<&7
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exec 7<&-
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exec 7<&0
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exec 0</dev/null
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exec 10<infile
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exec 10<&0; cat <&10
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exec 0<&7
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exec 7<&-
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exec 7<&0
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exec 0</dev/null
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exec 8<infile
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exec 8<&0; cat <&8
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exec 0<&7
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exec 7<&-
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rm -f infile
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cd $OLDPWD
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exit 0
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