12 Nov
2013
12 Nov
'13
12:27 a.m.
bash4$ with-temp-dir with-temp-dir: entering directory `/tmp/with-temp-dir.Y8IIFS' This directory will be deleted when you exit. bash4$ touch 1.jpg 2.png 3.png bash4$ shopt -s nullglob bash4$ gifs=(*.gif) jpgs=(*.jpg) pngs=(*.png) bash4$ echo "${#gifs[@]}" "${#jpgs[@]}" "${#pngs[@]}" 0 1 2 bash4$ ((${#gifs[@]})) || echo fail fail bash4$ ((${#jpgs[@]})) || echo fail bash4$ ((${#pngs[@]})) || echo fail bash4$