> '--' tells the Plan 9 program argument parser to stop looking for > options. See arg(2).
so is it a program dependent feature in the sence that I must know which program uses arg(2) and which does not? (E.g that grep uses it but some other command (is there any?) does not?) Must I read the program's source or should it be documented in man pages? -- there is nothing about this in the man page of grep... Thanks Ruda
