-ignore
-ig
This will make Atomsk automatically ignore files that already exist. Most of the time it means it will not overwrite (nor prompt about) files that were already converted before.
If both -overw and -ignore are used, then the existing files are not overwritten but are ignored.
To make this change permanent, you may set up a configuration file.
By default files that already exist are not ignored; instead the user is prompted whether to overwrite them or choose another name.
atomsk initial.gin cfg -ig
This will read initial.gin and convert it to CFG; but if initial.cfg already exists, the conversion will not be performed.