On Fri, 28 Sep 2007 16:33:23 -0400
"Miner, Jonathan W (CSC) (US SSA)" <jonathan.w.miner@xxxxxxxxxxxxxx>
wrote:
>
>
>
> -----Original Message-----
> From: fedora-list-bounces@xxxxxxxxxx on behalf of Zoltan Szabo
> Sent: Fri 09/28/2007 04:08 PM
> To: For users of Fedora
> Cc:
> Subject: all softlinks to a given file
>
> Do you know an easy (fast) way to find all the softlinks to a given
> file, using Fedora?
>
> Example: in case of "S1 -> F, ...., SN -> F" the task is to find
> S1, ..., SN given file F.
>
> Any idea is appreciated,
> ----------------------------
>
> Tough question... since links are one way... Here are some
> thoughts. Assuming that you're only looking at one filesystem, try
> to look at the inode numbers. Here is the initial directory listing:
>
> % ls -li
> 3815190 -rw-r--r-- 1 jminer iis 0 Sep 28 16:21 F
> 3815193 lrwxrwxrwx 1 jminer iis 1 Sep 28 16:22 S1 -> F
> 3815215 lrwxrwxrwx 1 jminer iis 11 Sep 28 16:23 S2 -> ../jminer/F
>
> The first number is the inode, and the file and each link has a
> distinct inode number. Modify the args to `ls` and you can derefernce
> the symbolic link:
>
> % ls -Lli
> 3815190 -rw-r--r-- 1 jminer iis 0 Sep 28 16:21 F
> 3815190 -rw-r--r-- 1 jminer iis 0 Sep 28 16:21 S1
> 3815190 -rw-r--r-- 1 jminer iis 0 Sep 28 16:21 S2
>
> So you would have to traverse your filesystem looking for links (S#)
> that derefernce to the same inode as the known file (F). You can do
> this with `find`
>
> % find . -type l -exec ls -Lli {} \; | awk '$1 == 3815190 {print $0}'
> 3815190 -rw-r--r-- 1 jminer iis 0 Sep 28 16:21 ./S1
> 3815190 -rw-r--r-- 1 jminer iis 0 Sep 28 16:21 ./S2
>
Thank you for both solutions:
1)
find . -lname F
2)
ls -Lli % => inode number: 3815190
find . -type l -exec ls -Lli {} \; | awk '$1 == 3815190 {print $0}'
In case of "SN -> .... -> S2 -> S1 -> F <- SB1":
1): returns "S1" and "SB1" (first-level solutions),
2): returns "SN",...,"S2","S1" and "SB1" (all-level solutions).
For me, 1) is enough, but it was instructive. Thanks again,
Z.
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