2020年8月30日(日) 3:55 Bruce Lilly <bruce.li...@gmail.com>: > Please don't assume that something output by printf (without > quoting) for clarity is representative of actual expansion by the > shell when properly quoted.
Please don't assume that I have assumed something strange. To begin with, you didn't provide the script `shellbug', so something needs to be assumed anyway. Since it seems you are aware that your original post would be unclear and confuse others, you could have just included the contents of the file `shellbug'. Anyway, I did NOT assume that you have literally written broken quoting like separator2(octal escape)=\057 pattern1=${number1}(${separator1}) I assumed that you have written like separator2='\057' pattern1="${number1}(${separator1})" because otherwise, it doesn't work with ksh93 either. To explain it in more detail, first, these parameter expansions work for me with separator1='/'. The pattern that you constructed from separator2='\057' is just not supported by Bash. Next, you specify exactly the same script `shellbug' to both Bash and ksh93, so I could assume that you are missing the Bash-specific `shopt -s extglob' in the script because otherwise, ksh93 would have complained it. That is all what I can guess from your original post. -- Koichi