pamstack
Stack the planes of multiple PAM images into one PAM image.
TLDR
Stack the planes of the specified PAM images in the specified order
$ pamstack [path/to/image1.pam path/to/image2.pam ...] > [path/to/output.pam]
Specify the tuple type name of the output PAM file (maximum of 255 characters)
$ pamstack -tupletype [tuple_type] [path/to/image1.pam path/to/image2.pam ...] > [path/to/output.pam]