Menu script for bash/posix (MacOS, Linux...)

[dapgo]

Starting with the translation to bash script (testing in MacOSX term).

Linux testers are welcome

[dapgo]

batch vs bash
%V_var%     $V_var
ECHO/     ECHO "" / printf "\n"
ECHO texto     echo "texto" (bash doesn't recognize ECHO in caps)
REM     #
CHOICE     read
GOTO     case / if /break
(folder path) \     /
%CD%     "$(dirname "$0")"
IF EXIST "%PATH%"     if [ -d "$path" ]
IF NOT if !