How many input files?

there is one air command that can help you -

air project get-required-file == This command finds and displays the files in a project that the specified object(s) depends on. This command is branch-specific.

suppose u have graph ABC.mp. so to find the number of input datasets(IP files/IP tables..etc) using by the ABC.mp u can do the following ->

air project get-required-file /Projectname/mp/ABC.mp > ListofInputfiles.dat /* This wil save list of input files in file ListofInputfiles.dat */
cat ListofInputfiles.dat | wc -l /* It will give the count of input datasets required by the graph */

Cheers,
Puneet