How to change exposure over terminal?

[dragancevs]

Hello, how can i change the exposure of multiple files through the terminal?
I have tried this command for one file.
gegl -i a.JPG -o out.a.JPG — exposure=0.3

[prokoudine]

Hello, how can i change the exposure of multiple files through the terminal? I have tried this command for one file. gegl -i a.JPG -o out.a.JPG — exposure=0.3

Please see https://gegl.org/gegl-chain.html for documentation