Accept arguments from the command line

Current arguments and options list:―

-d SECONDS,
--def-display=SECONDS
default display duration, in seconds

-e LIST
--display-times=LIST
specify the display times for all images in a comma-separated LIST
empty items or - interpreted as 'use default'

-f,
--force-overwrite
overwrite existing slideshows with the same name without asking
(implicitly set by --no-gui AND --standard-output)

-g,
--no-gui
don't display the graphical user interface (GUI)

-h,
--help
display usual description and arguments list

-l LOCATION,
--location=LOCATION
specify the directory in which to save the slideshow file

-m FILENAME,
--filename=FILENAME
specify the filename for the slideshow

-n NAME,
--title=NAME
specify the name for the slideshow

-o PATH_AND_FILENAME,
--output=PATH_AND_FILENAME
specify a location and filename for the slideshow file

-q,
--no-notifications
do not send a notification when the wallpaper is set

-s
--standard-output
write the slideshow file to the standard output

-t SECONDS,
--def-transition=SECONDS
default transition time, in seconds

-u LIST
--transition-times=LIST
specify the transition times for all images in a comma-separated LIST
empty items or - interpreted as 'use default'

-v,
--verbose
be more verbose (specify more than once for extra detail)

-x,
--only-create
do not change the wallpaper
(implicitly set by --no-gui AND --standard-output without --name=, --filename=, or --output=)

Remaining arguments are treated as a list of filenames, which should be images* or other slideshow files.
* Images may be in JPEG, PNG, GIF, or SVG format.