How to call execl() in C with the proper arguments?

by 
execl("/home/vlc", 
  "/home/vlc", "/home/my movies/the movie i want to see.mkv", 
  (char*) NULL);

You need to specify all arguments, included argv[0] which isn’t taken from the executable.

Also make sure the final NULL gets cast to char*.

Details are here: http://pubs.opengroup.org/onlinepubs/9699919799/functions/exec.html

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