$ x=$'\\a\\b\\c\\\001\\d\\e\\f' $ case $'abc\001def' in $x) echo ok ;; *) echo oops; esac oops $ x=$'\\a\\b\\c\\\002\\d\\e\\f' $ case $'abc\002def' in $x) echo ok ;; *) echo oops; esac ok
'case' can't match an escaped $'\001' character passed from a variable. Any other character from $'\002' up works fine. Curious that $'\001' seems to be handled specially somehow. - M
