mirror of https://github.com/n-hys/bash.git
57 lines
1.6 KiB
Plaintext
57 lines
1.6 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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# exporting namerefs and putting namerefs in temp env post bash-4.3
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typeset -nx ref=var;
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typeset -p ref
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var=foo; str=''
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printenv ref # var
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ref+=$str printenv ref # var
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ref+="$str" printenv ref # var
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ref=$ref$str printenv ref # var
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export ref # follows nameref and exports var
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printenv var # foo
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ref+=$str printenv var # foo
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ref+="$str" printenv var # foo
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ref=$ref$str printenv var # foo
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# none of these should change ref; should follow the nameref and export var
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unset var; unset -n ref; typeset -n ref=var
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echo before
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typeset -p ref var
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echo first
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ref=xxx typeset -p ref var
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echo invalid
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var= ref=5 typeset -p ref var
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echo after
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typeset -p ref var
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# ref isn't exported, so none of the printenvs should print anything
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unset var ; unset -n ref
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typeset -n ref=var;
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typeset -p ref
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var=foo; str=''
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printenv ref
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ref+=$str printenv ref
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ref+="$str" printenv ref
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ref=$ref$str printenv ref
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