Estou comparando duas imagens usando o ImageMagick no Terminal LINUX.
Quando digito na linha do Terminal isso (abaixo) ele me retorna um valor:
$ compare -metric mae 0.jpg 2.jpg null:
Porém näo consigo colocar esse valor numa variável para posteriormente fazer uma comparaçäo dentro de um Script BASH. Abaixo como escrevo e me dá erro (ou melhor: A variável continua vazia e o valor ainda sai na tela):
var=\`compare -metric mae 0.jpg 2.jpg null:\`
nem assim funciona:
var=$ (compare -metric mae 0.jpg 2.jpg null:)
Quando digito: echo $ var
näo sai nada! Alguém me ajuda?
Como passo para uma variável o valor de um COMPARE -METRIC
?
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