jeremy-rutman · November 6, 2021 06:26
diff --git a/crop all files matching pattern b/crop all files matching pattern
 #crop bottom 10 pixels off all files that look like ffefd224-f72b-47e7-9671-c79fbebe25fd.jpg 
 # ie 8 digits hex, dash, 4 digits ....jpg

 for f in $(ls|grep -E '^([a-f0-9]){8}\-([a-f0-9]){4}.*.jpg'); do echo $f; convert $f -gravity south -chop 0x10 $f;done

 # grep -E is extended regex which requires less slashes iiuc, () around capture group you want to appear {n} times, . matches anyting
	#crop bottom 10 pixels off all files that look like ffefd224-f72b-47e7-9671-c79fbebe25fd.jpg
	# ie 8 digits hex, dash, 4 digits ....jpg

	for f in $(ls\|grep -E '^([a-f0-9]){8}\-([a-f0-9]){4}.*.jpg'); do echo $f; convert $f -gravity south -chop 0x10 $f;done

	# grep -E is extended regex which requires less slashes iiuc, () around capture group you want to appear {n} times, . matches anyting