mirror of
https://https.git.savannah.gnu.org/git/bash.git
synced 2026-06-22 13:27:58 +02:00
Chet Ramey
58 lines
769 B
Plaintext
58 lines
769 B
Plaintext
var=$'\01\02\03\177'
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bar=${unset:-$var}
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recho "$bar"
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unset -v bar
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bar=${unset:-"$var"}
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recho "$bar"
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foo=${parameter:=$var}
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recho "$foo"
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recho "$parameter"
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unset -v foo parameter
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foo=${parameter:="$var"}
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recho "$foo"
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recho "$parameter"
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unset -v foo parameter
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foo="${parameter:=$var}"
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recho "$foo"
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recho "$parameter"
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unset -v foo parameter
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recho ${parameter:=a\ b}
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unset -v parameter
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recho ${parameter:="a b"}
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unset -v parameter
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v='a b'
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recho ${parameter:=$v}
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unset -v parameter
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recho ${parameter:="$v"}
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unset -v parameter
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# unsetting IFS here
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set " abc " " def ghi " "jkl "
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unset -v IFS var
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var=${var-$*}/${var-$*}
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printf '[%s]\n' "$var"
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unset -v var
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: ${var=$*}
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printf '[%s]\n' "$var"
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unset -v var
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: ${var:=$*/$*/${var-$*}}
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printf '[%s]\n' "$var"
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