mirror of https://github.com/n-hys/bash.git
61 lines
1.4 KiB
Plaintext
61 lines
1.4 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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set -- "abc" "def ghi" "jkl"
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A=("$@")
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IFS=':'
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echo 'IFS=: ${var-$*}'
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unset var; printf '%s\n' ${var-$*}
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printf '%s\n' ${var-${A[*]}}
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echo "----"
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echo 'IFS=: ${var=$*}'
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unset var; printf '%s\n' ${var=$*}
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printf 'var=%s\n' "$var"
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unset var; printf '%s\n' ${var=${A[*]}}
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printf 'var=%s\n' "$var"
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echo "----"
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echo 'IFS=: ${var+$*}'
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printf '%s\n' ${var+$*}
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printf '%s\n' ${var+${A[*]}}
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echo "----"
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echo 'IFS= ${var-$*}'
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IFS=''
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unset var; printf '%s\n' ${var-$*}
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unset var; printf '%s\n' ${var-${A[*]}}
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echo "----"
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echo 'IFS= ${var=$*}'
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unset var
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printf '%s\n' ${var=$*}
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printf 'var=%s\n' "$var"
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unset var
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printf '%s\n' ${var=${A[*]}}
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printf 'var=%s\n' "$var"
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echo "----"
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echo 'IFS= ${var+$*}'
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printf '%s\n' ${var+$*}
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printf '%s\n' ${var+${A[*]}}
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