https://www.perforce.com/perforce/r14.3/manuals/p4v/files.add.html
https://sites.google.com/site/burlachenkok/articles/perforce
https://www.perforce.com/perforce/r14.2/manuals/cmdref/p4_add.html
https://sites.google.com/site/burlachenkok/articles/perforce