Thanks Filipe.

I can do it by cd-ing into file-to-be-patched dir. I think the -d switch in patch command does similar thing (cd). But then it assumes diff file also to be present in that new directory.

I guess the problem is not having full dir path in the diff file itself. The diff file mentions only file name. How do I get full path in my diff file? Any clues?

- CS.

On Thu, Sep 10, 2009 at 1:12 PM, Filipe Brandenburger filbranden@gmail.com wrote:

Hi,

On Thu, Sep 10, 2009 at 14:04, Carlos Santana neubyr@gmail.com wrote:

...

I have a diff file in my /var/tmp and would like to apply patch to a file in a different directory (other than /va/tmp). I tried using patch with -d switch, but that doesn't work. It complains abt  'patch: **** Can't open patch file tilda.diff : No such file or directory'. Do I need to copy my diff file to the directory where original file resides? Or is there any other way round?

Try:

cd /path/to/file/to/be/patched patch -p0 </var/tmp/tilda.diff

You might want to use -p1 or -p2 or -p3... depending on what is the path to the file inside the .diff file. To figure that out, open the .diff file and look at the lines that start with --- and +++, then see how many directories are there before the filename, use that number for the argument to -p.

HTH, Filipe _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Hi,

On Thu, Sep 10, 2009 at 14:34, nate centos@linuxpowered.net wrote:

Could another option be to pipe the diff into patch via STDIN ?

cat /path/to/filename.diff | patch -p0

That's exactly the same as:

$ patch -p0 </path/to/filename.diff

Filipe

On Thu, Sep 10, 2009 at 2:55 PM, Filipe Brandenburger filbranden@gmail.com wrote:

Hi,

On Thu, Sep 10, 2009 at 14:28, Carlos Santana neubyr@gmail.com wrote:

...

Thanks Filipe.

I can do it by cd-ing into file-to-be-patched dir.

So, this means it's fixed for you?

...

I think the -d switch in patch command does similar thing (cd). But then it assumes diff file also to be present in that new directory.

Yes, it will change directory before looking for the patch file, so I believe you should use absolute pathnames or redirections.

...

I guess the problem is not having full dir path in the diff file itself. The diff file mentions only file name. How do I get full path in my diff file? Any clues?

I believe the "problem" is that you are not using "patch" as you are supposed to use it...

Read the first lines of "man patch", it will say: "but usually just: patch -pnum <patchfile"

That is how it's intended to be used in most cases. You cd to the directory where the source tree is, then call "patch" using redirection to get the patch file from stdin.

That's helpful. Thanks for the details Filipe.

I need to CD into the to-be-patched-source dir and then patch works. This is because the context diff file is not having absolute path to the to-be-patched file.

If I manually edit first line of context diff starting with *** to provide absolute path, everything works fine.

Is there any way to get absolute path in the diff o/p?

Does using "patch" in that solve your problem? Otherwise, please state clearly what you are trying to achieve.

HTH, Filipe _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos