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シェルスクリプトでtry-catch-finally

Posted at

引数のパスに対してのcdの成否でCATCHが表示されたりされなかったり。
FINALLYは常に表示される。

#!/bin/sh

set -eu

trap catch ERR
trap finally EXIT

function catch {
    echo CATCH
}
function finally {
    echo FINALLY
}

echo pre
cd $1
echo post
 
exit 0

成功例

$ ./test.sh /
pre
post
FINALLY

失敗例

$ ./test.sh /root
pre
./test.sh: line 16: cd: /root: 許可がありません
CATCH
FINALLY
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