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From: davidsen@sixhub.UUCP (Wm E. Davidsen Jr)
Newsgroups: comp.unix.shell
Subject: Re: testing if a file is present
Message-ID: <2356@sixhub.UUCP>
Date: 23 Nov 90 03:07:29 GMT
References: <ger.659126250@prisma> <1990Nov21.191638.19469@athena.mit.edu>
Reply-To: davidsen@sixhub.UUCP (bill davidsen)
Distribution: comp.unix
Organization: *IX Public Access UNIX, Schenectady NY
Lines: 26

In article <1990Nov21.191638.19469@athena.mit.edu> jik@athena.mit.edu (Jonathan I. Kamens) writes:

| In sh, with either a test built-in named "[" or a link in your filesystem
| called "[" pointing to the test program:
| 
| 	if [ -r filename ]; then
| 		... stuff if filename exists ...
| 	fi
| 
| Some versions of test allow "-e" to test for existence, instead of "-r" to
| test for existence and readibility, but mine doesn't, so I use "-r" instead of
| "-e" above.  In sh without "[":
| 
| 	if test -r filename; then
| 		... stuff if filename exists
| 	fi

  Close but not correct.
	-f is there a file
	-r is it readable
	-x is it executable
-- 
bill davidsen - davidsen@sixhub.uucp (uunet!crdgw1!sixhub!davidsen)
    sysop *IX BBS and Public Access UNIX
    moderator of comp.binaries.ibm.pc and 80386 mailing list
"Stupidity, like virtue, is its own reward" -me