splitxyz(1gmt) on Linux
The text 4d14cad78f45, as Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 3.1 (Sarge) shipped it.
filter to divide (x,y,z[,distance,heading]) data into (x,y,z) track segments.
Flags it lists
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-: -
-A -
-C -
-D -
-F -
-G -
-H -
-M -
-N -
-S -
-V -
-Z -
-bi -
-bo