-$
-$ deltree: subroutine ! P1 is a name of a directory
-$ on control_y then goto dt_STOP
-$ on warning then goto dt_exit
-$ _dt_def = f$trnlnm("SYS$DISK")+f$directory()
-$ if f$parse(p1) .eqs. "" then exit
-$ set default 'f$parse(p1,,,"DEVICE")''f$parse(p1,,,"DIRECTORY")'
-$ p1 = f$parse(p1,,,"NAME") + f$parse(p1,,,"TYPE")
-$ _fp = f$parse(".DIR",p1)
-$ dt_loop:
-$ _f = f$search(_fp)
-$ if _f .eqs. "" then goto dt_loopend
-$ call deltree [.'f$parse(_f,,,"NAME")']*.*
-$ goto dt_loop
-$ dt_loopend:
-$ _fp = f$parse(p1,".;*")
-$ if f$search(_fp) .eqs. "" then goto dt_exit
-$ set noon
-$ set file/prot=(S:RWED,O:RWED,G:RWED,W:RWED) '_fp'
-$ set on
-$ delete/nolog '_fp'
-$ dt_exit:
-$ set default '_dt_def'
-$ exit
-$ dt_STOP:
-$ set default '_dt_def'
-$ stop/id=""
-$ exit
-$ endsubroutine