48 lines
756 B
Plaintext
48 lines
756 B
Plaintext
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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