The identical /etc/skel/.bashrc and /etc/defaults/etc/skel/.bashrc contain the same line
# export HISTCONTROL=$HISTCONTROL${HISTCONTROL+,}ignoredups But HISTCONTROL values should be colon separated, not comma separated. This line is commented out, but if someone like me tries to use it without much thinking... -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple