It seems that bash for Cygwin does not set the COLUMNS and LINES shell variables, neither at startup nor when WINCH is delivered. Defining TIOCGWINSZ by including <termios.h> in lib/sh/winsize.c fixes the issue. -Mark -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/