A special type of file that references a file or directory.

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7
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2answers
5k views

How to create backup from symbolic links?

I have a directory with symbolic links to other directories. I want to archive the symbolic links, not as links but as archives containing the files of directories they refer to, using tar command. ...
8
votes
2answers
1k views

find usage with -L

I have link -> file I do find -L . -name 'link' And get ./link Why is that? man find says: -L : Follow symbolic links. When find examines or prints information about files, ...
4
votes
2answers
1k views

Trailing slashes on symbolic links to directories

I'm trying to emulate the process of path resolution (see man page path_resolution) in unix-like systems. My OS is Linux with GNU coreutils 8.7. In order to clarify the meaning of extra trailing '/' ...
7
votes
2answers
1k views

Is a symbolic/soft link similar to a shortcut/alias on a desktop?

It sounds to me like the basic idea of soft/symbolic links compared to shortcuts (on a PC) or aliases (on a Mac) are the same thing. Am I way off? Are they similar?
2
votes
1answer
1k views

Creating symbolic links to applications in Mac OS X

I installed Aquamacs in a fresh OS X desktop, and wanted to be able to call the program from the commandline. Calling the file inside the app seems to work just fine: Amoss-iMac:bin amosjyng$ ...
4
votes
5answers
2k views

How to make a variable symlink ? (or something similar)

How can I make a variable symlink that would point to a different location according to the current user? Is it possible? Should I use something else instead? A mount point? How? Here is the problem ...
2
votes
1answer
110 views

Will symlinks be maintained if the target's path remains the same but everything is transferred to a new disk?

(I think the answer is yes, but I'd like to be certain before I actually do it!) What I'm trying to do: install a new sd card in my "rooted" Android phone that uses A2SD. The fact that it's an ...
4
votes
2answers
2k views

How does linux work with symbolic links?

I mean what's going on when some process wants to read a symlink? What's going on when something changes a symlink during a read or even write process? For example: I have 2 huge, similar 100G files ...
0
votes
0answers
106 views

Purpose of hard link and soft link [duplicate]

Possible Duplicate: What is the difference between symbolic and hard links? I've read quite a few articles regarding hard links and soft links, but I still dont understand the purpose of ...
3
votes
4answers
1k views

Accidental deletion of /lib directory in Fedora 15

I accidentally deleted the /lib directory on my Fedora 15 machine and I'm not sure how to go about fixing this. Any help in figuring out how to restore the directory along with symbolic links would be ...
2
votes
3answers
712 views

How universal is the -L (dereference symlink) switch of the 'ls' command?

I have some software that, among other things, needs to: Assess a file's rwxrwxrwx permissions; Work under every possible flavor of Unix and Linux you can find in the wild. Currently, it does that ...
14
votes
4answers
9k views

Converting relative path to absolute path

Is there a *nix command to get absolute(and canonicalized) path from relative path(with current path) or symbolic link?
2
votes
1answer
153 views

Wikilink to a symbolic link in ikiwiki

I am running an ikiwiki for my personal use on my laptop via apache2 (os: ubuntu 10.04). If I want to make a link to a local pdf-file I put the file into my scrdir and use the usual wikilink syntax. ...
2
votes
0answers
92 views

Hard links vs. Soft links: When would you want to use one over the other? [duplicate]

Possible Duplicate: What is the difference between symbolic and hard links? Today, my teacher talked about the differences between 'hard links' and 'soft links', but she never really ...
2
votes
2answers
677 views

How do I dereference links when extracting from a tar file?

If I have a tar file, bob.tar, which contains real_file and link_to_real_file, in which the latter is a symlink, is there a way to extract the contents of bob.tar so that link_to_real_file will not be ...
8
votes
3answers
393 views

Symlink to part of the file?

Is there possible to create file that is just a sub-sequence of bytes from another file, like a symlink, but referencing only part of the file?
2
votes
1answer
927 views

How synchronize two disks (or folders) using symbolic (or hard) links (like rsync)?

I'm searching a tool or a shell script or another program to synchronize two or more folders or disks. But it differs of rsync tool, because, I don't want to duplicate the missing file, but do a ...
1
vote
2answers
6k views

Executable symbolic link results in “command not found”

I created a symbolic link (yesterday) like this: sudo ln -s bin/python /usr/bin/prj-python When I run: prj-python file.py I get: prj-python: command not found When I try creating the link ...
58
votes
3answers
15k views

Why hard links not allowed to directories in UNIX/Linux

I read in text books that UNIX/Linux doesn't allows hard links to directories but soft links do. Is it because, when we have cycles and if we create hardlinks, and after some time we delete the ...
14
votes
3answers
23k views

How to get full path of original file of a soft symbolic link?

I want to scp a file to a server. The file is a symbolic link, and actually what I want to do is copying the source file. Anyway I don't want to track source file's path manually, because it can be ...
5
votes
4answers
6k views

List symlinks in current directory?

This question talks about finding directories in a current diretory. The solution is basically: ls -d */ That's great but how can I easily list symlinks? Do I have to use something like find . ...
0
votes
2answers
2k views

Replace symbolic link which linked to directory target

I want to upgrade tomcat server from 7.0.19 to 7.0.20. I've already ln -s apache-tomcat-7.0.19 tomcat7 before, so now I need to link tomcat7 to new target using the following command ln -s --force ...
3
votes
2answers
115 views

Symbolic Link local .jpg file to .jpg file on the internet

Is there any way to have a symbolic link that links a local .jpg file to a .jpg file on the internet in a l/unix environment?
9
votes
2answers
2k views

mv a file without breaking a symlink to that file

Is it possible to mv a file w/out breaking a symbolic link to that file? My initial response to this is no, and I'm working out a script based solution to change the links immediately following the ...
24
votes
3answers
7k views

How can I “relink” a lot of broken symlinks?

I have a directory tree which has a bunch of symbolic links to files under /home... however, I have moved /home to /mnt/home and need a way to "relink" all of the symlinks. Does such functionality ...
4
votes
2answers
1k views

How does /dev/fd relate to /proc/self/fd/?

$ ls -l /dev/stdin /dev/fd/0 lrwx------ 1 tim tim 64 2011-08-07 09:53 /dev/fd/0 -> /dev/pts/2 lrwxrwxrwx 1 root root 15 2011-08-06 08:14 /dev/stdin -> /proc/self/fd/0 $ ls -l /dev/pts/2 ...
1
vote
1answer
2k views

Get path of current script when executed through a symlink

I have a utility consisting of a couple directories with some bash scripts and supporting files that will be deployed to several machines possibly in a different directory on each machine. The ...
3
votes
2answers
185 views

ln gives different results when run multiple times

I have this simple script to use with seventh sense (it's a lone wolf gamebook reader/player): #!/bin/bash GAME_PATH=$(dirname "$(readlink -f "$0")") SEVENTH_SENSE_PATH=$(echo ...
2
votes
1answer
775 views

Extended attribute on symbolic link

I'm trying to set some extended attributes on a symbolic link on Fedora 15. According to setfattr's usage, there is an option -h for such purpose: setfattr 2.4.44 -- set extended attributes Usage: ...
2
votes
1answer
2k views

Why can't list file/directory relative to .. from a symbolic link directory (No such file or directory)?

I have a /usr/tomcat6/logs directory linked to /var/log/tomcat6. When I changed directory to /usr/tomcat6/logs and try to ls files using a relative pathname ../conf/Catalina/localhost, a No such file ...
3
votes
1answer
806 views

Is there any way to rsync absolute symlinks alone?

I want to sync a big folder hierarchy between two machines. I want to copy the contents of the symlinks if they are absolute, for eg it points to /some/folder/someFile I want to retain the symlinks if ...
4
votes
2answers
766 views

Why is bash completion of a symlink different than a directory?

I usually do a find with an environment variable as the path when searching for source code. Recently I replaced my environment variable with a symbolic link, and it broke Bash's shell completion. ...
1
vote
1answer
453 views

Kdevelop project setup with symlinked files not seeing custom include paths

So I have a crazy project setup (well, it's only 1 file that needs this crazyness). First, I'll explain the setup. So I have a file on my dropbox. I want to include that file in a Kdevelop project, ...
2
votes
2answers
1k views

How to remove the directory a symbolic link links to plus the symbolic link?

Say a is a symbolic link to b. I am looking for a simple command to remove both a and b at once that does not require me to know about b.
6
votes
1answer
2k views

list files by symlink target

How do I get list of files (and then do something with that list) by filtering through the symbolic link target name, and not the symlink name? For example from the following list I'm only interested ...
6
votes
1answer
3k views

Symbolic link permissions

I have access to a remote Linux machine where everytime I create a symbolic link, it is created by default with the following permissions: lrwxrwxrwx If I try to change the permissions of the ...
4
votes
6answers
1k views

Is it possible to “roll” a symlink to a new file without affecting any open file handles?

An application I am developing locally logs it's output to files formatted with the current timestamp such as app-%Y%m%d.log. To make it simple to be able to tail the current's day log in a terminal ...
13
votes
4answers
9k views

Make a symbolic link to a relative pathname

I can do this: $ pwd /home/beau $ ln -s /home/beau/foo/bar.txt /home/beau/bar.txt $ readlink -f bar.txt /home/beau/foo/bar.txt But I'd like to be able to do this: $ pwd /home/beau $ cd foo $ ln -s ...
28
votes
7answers
10k views

What is the difference between symbolic and hard links?

When would you use one over the other?
7
votes
1answer
332 views

Is there a way to make perl -i not clobber symlinks?

A friend of mine points out that if you do: perl -pi.bak -e 's/foo/bar/' somefile when "somefile" is actually a symlink, perl does just what the docs say it will do: It does this by renaming ...
1
vote
1answer
684 views

apache symlinks and dokuwiki

I am running a dokuwiki on an apache webserver. Usually I put media files into the directory /var/lib/dokuwiki/data/media. However, to be more flexible and to save disk space, it would be nice to use ...
10
votes
4answers
910 views

Include / in symlink to a directory?

Symlinking to a directory gives to different results with ls -l depending on whether I ln -s dir or ln -s dir/. But what's the actual difference, and which one should I prefer why?
6
votes
5answers
1k views

Dynamic Symlinks

I have built my app for different architectures and would like to create a "dynamic symlink" which takes me to the right version based on a variable. If the machine I am currently logged in to, is ...
0
votes
1answer
296 views

Keeping multiple root directories in a single partition

I'm working out a partition scheme for a new install. I'd like to keep the root filesystem fairly small and static, so that I can use LVM snapshots to do backups without having to allocate a ton of ...
4
votes
2answers
445 views

Find incoming symlinks

In Linux, what is the best way to find all symbolic links that point to a given file (regardless of whether the symlink is relative or absolute)? I realize this will require scanning the whole ...
13
votes
2answers
1k views

pwd without symlinks

If I do pwd I notice it uses whatever symlinks I used to get into the current directory. Can I get it to tell me the "real" directory I'm in ... i.e. the path from the root to my current directory ...
6
votes
1answer
435 views

Why do some symbolic links affect program behavior?

One thing that has been puzzling me for some time is this: % which halt /sbin/halt % file /sbin/halt /sbin/halt: symbolic link to `reboot' However, executing sudo halt does, of course, not reboot ...
0
votes
1answer
420 views

Inconsistency in behavior of 'rm' when a mounted volume is involved?

If I run the following sequence of commands: mkdir dir ln -s dir link rm -r link/ I get this output: rm: cannot remove `link': Not a directory I get the warning because I could simply have ...
5
votes
2answers
7k views

How do you make samba follow symlink outside the shared path

This is ubuntu server 10.04 64 and samba 3.4.7 I have a shared directory /home/mit/share and another one /home/temp that I link into the shared one: ln -s /home/temp /home/mit/share/temp But on ...
7
votes
4answers
2k views

How does one atomically change a symlink to a directory in busybox?

I am trying to (as close as possibly) atomically change a symlink. I've tried: ln -sf other_dir existing_symlink That just put the new symlink in the directory that existing_symlink pointed to. ln ...