snap(1) on Linux
The text 9e22d7fc79a9, as Debian 8 (Jessie) shipped it.
Semi-HMM-based Nucleic Acid Parser
Flags it lists
-
-aa -
-ace -
-gff -
-help -
-lcmask -
-minus -
-name -
-plus -
-quiet -
-tx -
-xdef