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Old 09-19-2005, 03:39 PM   #1
LQ Newbie
Registered: Jul 2005
Distribution: Ubuntu "Dapper" 6.06 LTS
Posts: 18

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How to find symlink target name in script


I have a symlink
that points to

I am looking for a command kind of like this:

(From the 'ls' manpage)
-L, --dereference
when showing file information for a symbolic link, show informa-
tion for the file the link references rather than for the link
$ ls -l ~/bin/foo/
lrwx------  1 me me 39 Sep 19 11:47 ~/bin/foo/ -> ~/photos/image.jpg
$ ls -l --dereference ~/bin/foo/
-rwx------  1 me me 150108 May 29  2003 ~/bin/foo/
But I want the name of the target file not just info about it. The 'file' command would work fine except that I don't know how to pull out just the filename for my script, grep with a regex just lists the whole line.

Is there a command you know of/option to 'ls' ?? Or is 'sed'/'awk' something I should look into??

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Old 09-19-2005, 04:15 PM   #2
Senior Member
Registered: Jan 2005
Location: Manalapan, NJ
Distribution: Fedora x86 and x86_64, Debian PPC and ARM, Android
Posts: 4,593
Blog Entries: 2

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file somefile | awk '{print $5}'


ls -l somefile | awk '{print $11}'
Old 09-19-2005, 09:41 PM   #3
LQ Newbie
Registered: Jul 2005
Distribution: Ubuntu "Dapper" 6.06 LTS
Posts: 18

Original Poster
Rep: Reputation: 1

That's exactly what I needed.

I suppose I could have read the 'awk' man page but at the time it seemed so daunting, at least now I understand the basics of it.

Thank you!

P.S. There you go Jeremy (and macemoneta) yet another satified Linux user, at least untill I come up with another Question!
Old 08-09-2006, 04:14 PM   #4
LQ Newbie
Registered: Jul 2005
Distribution: Ubuntu "Dapper" 6.06 LTS
Posts: 18

Original Poster
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Well after a long time of not thinking about this I was poking around and found the readlink command:

$readlink --help
Usage: readlink [OPTION]... FILE
Display value of a symbolic link on standard output.
The awk method does work and for more that just the question I had. But for finding the target of a symlink I think this works better. (Much simpler, easyer to read, remember what it does in a script, etc.)

Also it is contained in the coreutils package (Ubuntu) so most if not all distros will have it.
2 members found this post helpful.
Old 08-14-2015, 11:23 AM   #5
LQ Newbie
Registered: Aug 2015
Posts: 1

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One more reason to use readlink is that it can follow recursively

I know is an extremely old thread, but hey, some of these tips are still valid after years!!!

I just wanted to point out one advantage of using readlink instead of the awk solution is that readlink can follow links recursively as opposed to the awk solution.
for example, I found this thread trying to find a way to get the real java command in my system (in a script), so I ended up doing this:

readlink -f $(which java)
Which in fact has two symlinks:

which java -> /usr/bin/java
/usr/bin/java --symlink--> /etc/alternatives/java
/etc/alternatives/java --symlink--> /usr/lib/jvm/jdk1.8.0_11/bin/java

Last edited by pcabrera; 08-14-2015 at 11:24 AM.


awk, symlink, symlinks

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