david@utzoo.UUCP (David Trueman) (03/31/84)
Openable is used to test whether a file can be opened for reading, writing or both. Its behaviour is that of the V7 test(1) using the "-r" or "-w" options (except that test(1) did not provide for opening for read and write). The System 5 builtin "test", however, uses access(2) rather than open(2), so the behaviour is different for directories or devices. -- David Trueman @ U of Toronto Zoology {allegra,ihnp4,linus,decvax}!utzoo!david