sgitopnm(1) on Linux
The text 580221ea0ff3, as Debian 13 (Trixie), Debian 12 (Bookworm) shipped it.
convert a SGI image file to PNM
Flags it lists
-
-channel -
-verbose
The text 580221ea0ff3, as Debian 13 (Trixie), Debian 12 (Bookworm) shipped it.
convert a SGI image file to PNM
-channel
-verbose