Question

8

How to find the original file of a soft link?

rated 0 times [ 8] [ 0] / answers: 1 / hits: 12564 / 3 Years ago, thu, october 7, 2021, 6:00:40

For example, I have a file a, and I do the followings.

ln -s a b

ln -s b c

ln -s c d

If I use readlink d, I will get c. So I have to run many times to get a.

Is there an easy way to get a?

Update:

If I want to locate the original file of /usr/bin/java, I have to do it many times to get /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java. The files and links are not in the same folder.

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answered 3 Years ago measord · Accepted Answer

Command for following chains of links is named namei^ManPage. Examples:

$ touch a

$ ln -s a b

$ ln -s b c

$ ln -s c d

$ namei ./d

f: ./d

 d .

 l d -> c

   l c -> b

     l b -> a

       - a

$ namei /usr/bin/java

f: /usr/bin/java

 d /

 d usr

 d bin

 l java -> /etc/alternatives/java

   d /

   d etc

   d alternatives

   l java -> /usr/lib/jvm/java-7-openjdk-i386/jre/bin/java

     d /

     d usr

     d lib

     d jvm

     d java-7-openjdk-i386

     d jre

     d bin

     - java