ImageMagick bash脚本问题

Question

// This works 
convert ${path}${dst} -crop ${crop} ${path}${dst} 

// but when changed to this, it fails 
convert ${path}${src} -trim ${path}${dst} 
convert ${path}${dst} -crop ${crop} ${path}"pdf_"${dst} 

我在做什么错？

Answer 1

是否改变这一点：

convert ${path}${dst} -crop ${crop} ${path}"pdf_"${dst} 

要这样：

convert ${path}${dst} -crop ${crop} "${path}pdf_${dst}" 

帮助？

Answer 2

适合我。

$ path=./ 
$ src=test.jpg 
$ dst=test2.jpg 
$ crop=100x100+10+10 
$ convert ${path}${src} -trim ${path}${dst} 
$ convert ${path}${dst} -crop ${crop} ${path}pdf_${dst} 
$ identify pdf_test2.jpg 
pdf_test2.jpg JPEG 100x100 100x100+0+0 DirectClass 8-bit 3.30078kb