[Fwd: Re: Fw: Problems with ln -s]

[Nyandoro]

Sorry for the earlier mail, which didn't have the attachment.
Please see attached file for further comments to the problem I am
having.

These were your comments to my earlier mail



> > Is there a way to extensively check if a symbolic link has been
> > succesful or if there have been  problems in trying to link.
>
> The return code of the ln program will be zero if no errors occurred
> and the link creation was successful.  Check the return code.  With
> modern shells the following syntax works well.
>
>   if ! ln -s foo bar; then
>     echo "Error: Failed to create symlink" 1>&2
>     exit 1
>   fi
>
> > I have tried the obvious like testing ln -s on text editable files
> > and once I alter any of the original or symbolically linked files
> > the changes are automatically appear in the other file and vice
> > versa.
>
> That does sound like a functioning system.
>
> > Yet I suspect there is some thing wrong with my symbolic
> > links.
>
> What makes you suspect that something is wrong?
>
> > Is there any other way to extensively check my symbolic links.
>
> Use 'ls -ldgon' on the symlink and verify the target is what you
expect.
> Use 'ls -ldLi' which will push through the symlink and verify that the

> file works and that 'ls -ldi' on the target of the symlink has the
> same inode number.
>
> Bob

I seem not to have problems with these symbolic links:

address@hidden Temp]# ls -ldgon /home/ACE_wrappers/TAO/orbsvcs/orbsvcs/libTAO_*
-rwxr-xr-x   1 0         5959442 Jan  1 04:44 
/home/ACE_wrappers/TAO/orbsvcs/orbsvcs/libTAO_AV.so
-rwxr-xr-x   1 0          420062 Jan  1 04:30 
/home/ACE_wrappers/TAO/orbsvcs/orbsvcs/libTAO_CosConcurrency.so
-rwxr-xr-x   1 0         3110334 Jan  1 05:10 
/home/ACE_wrappers/TAO/orbsvcs/orbsvcs/libTAO_CosEvent.so


How ever I do have problems with these two sets below:

address@hidden Temp]# ls -ldgon pr*
-rw-r--r--   1 0             294 Mar 19 22:54 pre.h
lrwxrwxrwx   1 500             5 Mar 19 22:49 pro.h -> pre.h



address@hidden Temp]# ls -ldgon /home/ACE_wrappers/ace/libTAO*
lrwxrwxrwx   1 0              36 Jan  1 02:39 /home/ACE_wrappers/ace/libTAO.so 
-> /home/ACE_wrappers/TAO/tao/libTAO.so
lrwxrwxrwx   1 0              51 Jan  1 04:44 
/home/ACE_wrappers/ace/libTAO_AV.so -> 
/home/ACE_wrappers/TAO/orbsvcs/orbsvcs/libTAO_AV.so
lrwxrwxrwx   1 0              63 Jan  1 04:30 
/home/ACE_wrappers/ace/libTAO_CosConcurrency.so -> 
/home/ACE_wrappers/TAO/orbsvcs/orbsvcs/libTAO_CosConcurrency.solrwxrwxrwx   1 0 
             57 Jan  1 05:10 /home/ACE_wrappers/ace/libTAO_CosEvent.so -> 
/home/ACE_wrappers/TAO/orbsvcs/orbsvcs/libTAO_CosEvent.so
lrwxrwxrwx   1 0              61 Jan  1 04:45 
/home/ACE_wrappers/ace/libTAO_CosLifeCycle.so -> 
/home/ACE_wrappers/TAO/orbsvcs/orbsvcs/libTAO_CosLifeCycle.so
lrwxrwxrwx   1 0              58 Jan  1 04:25 
/home/ACE_wrappers/ace/libTAO_CosNaming.so -> 
/home/ACE_wrappers/TAO/orbsvcs/orbsvcs/libTAO_CosNaming.so

I need to use the smbolically linked files after they are linked, and after a 
number of problems
I have come to suspect that the problem is in the sym-links. One perculiar thing
is that at some pont when I create the links to the last set of files
i.e  /home/ACE_wrappers/ace/libTAO* there is a point that I get them as 
--rwxr-xr-x
The interesting thing being that the same set of instructions are always used 
to generate
these files (/home/ACE_wrappers/ace/libTAO*). I have always had problems 
whenever
they come out as lrwxrwxrwx but no problems when they come out as --rwxr-xr-x.

Perhaps I might be confusing things but these are my observations. Definately 
though, I am having
problems that seem to be linked to ln -s.