testing if a file is present

[Don Bolton]

In article <2356 at sixhub.UUCP> davidsen at sixhub.UUCP (bill davidsen) writes:
>In article <1990Nov21.191638.19469 at athena.mit.edu> jik at 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

	-s file has nonzero length

>-- 
>bill davidsen - davidsen at sixhub.uucp (uunet!crdgw1!sixhub!davidsen)
>    sysop *IX BBS and Public Access UNIX
>    moderator of comp.binaries.ibm.pc and 80386 mailing list

if [ -s $USER.IQ ]
   then 
       echo "Proceed..."
       read chore
       etc etc
   else
       echo "Stupidity, like virtue, is its own reward"
       exit 0
fi


There, now your .sig is more fitting :-)