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by james2vegas 4252 days ago
Blame man(7), have a look at mdoc(7): Semantic markup for command line utilities: Nm : start a SYNOPSIS block with the name of a utility; Fl : command line options (flags) (>=0 arguments); Cm : command modifier (>0 arguments); Ar : command arguments (>=0 arguments); Op, Oo, Oc : optional syntax elements (enclosure); Ic : internal or interactive command (>0 arguments); Ev : environmental variable (>0 arguments); Pa : file system path (>=0 arguments)