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Ignore a string pattern while doing file comparison/difference

 
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Old 06-03-2009
Ignore a string pattern while doing file comparison/difference
Here is my problem. I have to find the differences in 2 XML files

This is my Old File contents - File1
<FILEHDR>
<Bag xsi:nil='true'></Bag>
</FILEHDR>

This is my New File contents - File2
<FILEHDR>
<Bag xsi:nil='true' ></Bag>
</FILEHDR>

When I do the following
diff -b File1 File2

Even though I used the -b option to ignore the amount of white spaces, I get this difference, as there is an extra space after xsi:nil='true' in my new file.

How can I avoid this particular pattern xsi:nil='true' while doing difference of the files ?

Overall I wanted to figure out how can I avoid a pattern while doing comparison/difference of 2 files.

Appreciate your help
Last edited by sksahu; 06-03-2009 at 06:39 PM..
# 2  
Old 06-04-2009
manpages are your friend. Smilie
Code:
$ man diff
DIFF(1)                          User Commands                         DIFF(1)



NAME
       diff - compare files line by line

SYNOPSIS
       diff [OPTION]... FILES

DESCRIPTION
       Compare files line by line.

       -i  --ignore-case
              Ignore case differences in file contents.

       --ignore-file-name-case
              Ignore case when comparing file names.

       --no-ignore-file-name-case
              Consider case when comparing file names.
       -E  --ignore-tab-expansion
              Ignore changes due to tab expansion.

       -b  --ignore-space-change
              Ignore changes in the amount of white space.

       -w  --ignore-all-space
              Ignore all white space.

       -B  --ignore-blank-lines
              Ignore changes whose lines are all blank.

       -I RE  --ignore-matching-lines=RE
              Ignore changes whose lines all match RE.

 
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