Doesn't seem to work neither on Ubuntu nor Slackware Linux for me... It only outputs some error messages about "missing delegates for this format" and other err

Doesn't seem to work neither on Ubuntu nor Slackware Linux for me... It only outputs some error messages about "missing delegates for this format" and other errors (ImageMagick 6.9.7.4 and bash 4.4.18 in one case, and IM 6.9.4 and bash 4.3.48 in the other; same kind of errors).