Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!sdrc!cinnet!icc!cbp
From: cbp@icc.com (Chris Preston)
Newsgroups: comp.unix.shell
Subject: Re: finding the filesystem of a file
Keywords: filesystem search find file
Message-ID: <1990Nov9.230518.12342@icc.com>
Date: 9 Nov 90 23:05:18 GMT
References: <6495@emory.mathcs.emory.edu> <1990Nov06.021023.11941@virtech.uucp>
Distribution: usa
Organization: Intercomputer Communications Corp., Cincinnati, OH
Lines: 39

In article <1990Nov06.021023.11941@virtech.uucp> cpcahil@virtech.UUCP (Conor P. Cahill) writes:
>In article <6495@emory.mathcs.emory.edu> dt@mathcs.emory.edu (Dave Taylor {guest}) writes:
>>Curious to know if anyone can tell me the fastest way to find out which
>>filesystem a given file is on if the entire pathname is given.  I have only
>
>Maybe not the fastest, but it will work:
[shell script deleted]
or an awk solution

mount | 
awk 'BEGIN{
# file is defined so as to minimize confusion by useing $1 in substr()
# also, I believe that this should be $3 in Xenixland
	file="'$1'"
	if ( file == "" ){
		print "Usage: '$0' <filename>"
		exit
	}
}
{
	lenfsnam=length($1)
	if ( $1 == substr(file,0,lenfsnam) ){
		list[lenfsnam]=$1
		if ( lenfsnam > closematch )
			closematch=lenfsnam
	}
}
END{ 
	if ( closematch )
		print list[closematch]
	else
#totally optional - should take out if meant for pipe usage
		print "no match"
}' 

cbp
---
Kurt Waldheim to Saddam Hussein:
"Saddam, I knew Hitler, and believe me, you're no Adolf Hitler."