tar -c -v --listed-incremental=tart.incr1 -f archive.1 tart 2> err || exit 1
# The above prints two lines to stderr announcing the new directories c0 and c1.
# Ensure that they appear in this script's stderr in sorted order.
tar -c -v --listed-incremental=tart.incr1 -f archive.1 tart 2> err || exit 1
# The above prints two lines to stderr announcing the new directories c0 and c1.
# Ensure that they appear in this script's stderr in sorted order.