AAA
bash5: `invalid-name': not a valid identifier
in
in
in
in
bash5: -c: line 0: syntax error near unexpected token `)'
bash5: -c: line 0: `case x in esac) echo done; esac'
in
bash5: -c: line 0: syntax error near unexpected token `do'
bash5: -c: line 0: `case in do do) echo in; esac'
bash5: -c: line 0: syntax error near unexpected token `('
bash5: -c: line 0: `for()'
in
done
ok 1