IRAF help page for package language, program osfn

• vfn

string = osfn (vfn)

vfn

Osfn is a string valued intrinsic function which takes an IRAF virtual filename as input and returns the equivalent host system filename as output. Osfn can only be called as a function.

1. Print the host equivalent of the vfn "hlib$login.cl".

cl> = osfn ("hlib$login.cl")

2. Compute a host filename for use as an argument to a foreign task (see help task for more information on foreign tasks).

	cl> task $vdir = "$directory"	# VMS directory lister
	cl> vdir /size osfn("bin$")

SEE ALSO, pathnames, task,