[英]how to create checksums while images are captured with gphoto2
I want to create an MD5 hash for each shot captured with gphoto2. 我想为用gphoto2捕获的每个镜头创建一个MD5哈希。
I tried to run this command 我试图运行此命令
sudo gphoto2 -capture-image-and-download -force-overwrite \
-filename capture.jpg -I 10 && md5sum capture.jpg > md5.txt
but the checksum writes only when gphoto2 was stopped. 但是校验和仅在gphoto2停止时才写入。 I need to write it for each shot as it is captured?
我需要为拍摄的每个镜头编写它吗?
gphoto2 versions newer than 2.3.0 have the option --hook-script FILENAME
; 高于2.3.0的gphoto2版本具有
--hook-script FILENAME
选项; you could write a short script file, eg named hook.sh
: 您可以编写一个简短的脚本文件,例如,名为
hook.sh
:
case $ACTION in download) md5sum "$ARGUMENT" >md5.txt
esac
(don't forget to make it executable) and then (不要忘记使其可执行),然后
sudo gphoto2 -capture-image-and-download -force-overwrite \
-filename capture.jpg -I 10 --hook-script hook.sh
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