Re: Dereference a filesystem path with softlinks

I think the only way to determine if two paths (that could include soft links) point to the same directory is to do a @arr=stat("$path/."), take the inode number ($arr[1] in this case), and compare those.

If the paths point to the same inode number, it's the same directory. If they don't, it isn't.

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Re: Re: Dereference a filesystem path with softlinks by Fletch (Bishop) on Apr 20, 2004 at 19:45 UTC
Unless of course it's two different directories on different devices which just happen to have the same inode number . . . `$ df -k \| head -3; perl -le 'print"$_:\t".(stat $_)[1]for@ARGV' / /dev + Filesystem 1K-blocks Used Avail Capacity Mounted +on /dev/disk0s9 58598824 39199392 19143432 67% / devfs 96 96 0 100% /dev /: 2 /dev: 2` [download] Update: To elaborate, you want to use the tuple (device number, inode number), not just inode number.	[reply] [d/l]

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Re: Re: Dereference a filesystem path with softlinks
by Fletch (Bishop) on Apr 20, 2004 at 19:45 UTC

Unless of course it's two different directories on different devices which just happen to have the same inode number . . .

$ df -k | head -3; perl -le 'print"$_:\t".(stat $_)[1]for@ARGV' / /dev
+  
Filesystem              1K-blocks     Used    Avail Capacity  Mounted 
+on
/dev/disk0s9             58598824 39199392 19143432    67%    /
devfs                          96       96        0   100%    /dev
/:      2
/dev:   2
[download]

Update: To elaborate, you want to use the tuple (device number, inode number), not just inode number.

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[d/l]