# echo BEGIN COMMON # -------- constants DEVICE="/dev/video0" SIZE=" 640x480 " GRABDIR="capture" INDEX="${GRABDIR}/index" MAXIMUM=10000 # -------- utils function show_constants { echo printf "%-15s %s\n" DEVICE $DEVICE printf "%-15s %s\n" SIZE $SIZE printf "%-15s %s\n" GRABDIR $GRABDIR printf "%-15s %s\n" INDEX $INDEX printf "%-15s %s\n" MAXIMUM $MAXIMUM echo }