gimp

GNU image manipulation program. See also: krita. More information: https://docs.gimp.org/en/gimp-fire-up.html#gimp-concepts-running-command-line.

• Start GIMP:
  gimp
• Open specific files:
  gimp {{path/to/image1 path/to/image2 ...}}
• Open specific files in a new window:
  gimp --new-instance {{path/to/image1 path/to/image2 ...}}
• Start without a splash screen:
  gimp --no-splash
• Print errors and warnings to the console instead of showing them in a dialog box:
  gimp --console-messages
• Enable debugging signal handlers:
  gimp --debug-handlers