It's unclear what you mean by "number of changes". Number of changed lines? Number of changed characters? Number of changed regions?
Assuming the last of those (number of changed regions), one approach is to understand the output of diff. In Solaris diff (and most others, as I recall) the only lines that start with digits are the lines that specify the changed regions. so you can do this:
or
But in either of these, you are at the mercy of diff, which may not have the same idea about what a "region" is as you do. With more modern diffs than I have at hand, e.g., gnu diff, you have a lot more options to control what diff shows as a difference region.
All,
I have two csv files, the format of which are exactly the same.
I would like to find differences between the two files but would like to identify the difference as opposed to just printing a different line.
For exmaple
File 1
xxx,yyy,zzz,1,2,3
111,222,333,xxx,yyy
... (4 Replies)
Hello, I'm having trouble to read two txt files, they have employee records line by line, I need to do the reading of a file that is old and compare it with the new base in the new file, deleting the lines in old file, then add the new file data from the old file and write to the database manager.... (5 Replies)
Hi
Hope you are having a great weeknd !! I had a question and need your expertise for this :
I have 2 files File1 & File2(of same structure) which I need to compare on some columns. I need to find the values which are there in File2 but not in File 1 and put the Differences in another file... (5 Replies)
Hi everyone,
I know that's a deep treated issue but I'm actually not able to find the solution. I have 2 plain text files with ~ 2000 rows and ~5 columns. The first column of the shortest file (f1) is fully contained by the first column of the biggest one (f2), but only that column. I want to... (6 Replies)
Hi
*
I have two text files which has the file size, timestamp and the file name. I need to compare these two files and get the differences in the output format. Can anyone help me out with this.
*
cat file1.txt
*474742 Apr 18* 2010 sample.log
*135098 Apr 18* 2010 Testfile
134282 Apr 18* 2010... (7 Replies)
Hi!
I just want to count number of files in a directory, and write to new text file, with number of files and their name
output should look like this,,
assume that below one is a new file created by script
Number of files in directory = 25
1. a.txt
2. abc.txt
3. asd.dat... (20 Replies)
I have 2 files that need to be compared. Email the differences if something is different and don't email if nothing is different. One or both of the files could be empty. One or both could have data in them.
example files
backup.doc.$(date +%y%m%d) file size is 0
backup.doc.$(TZ=CST+24... (4 Replies)
Hello All,
Requirement is to compare 2 XML files and see if there are any differences but from some of the providers We are receiving UTF-16 formatted XML file with no end of line as shown below.
Excerpt of data file:
ÿþ<^@?^@x^@m^@l^@ ^@v^@e^@r^@s^@i^@o^@n^@=^@"^@1^@.^@0^@"^@... (11 Replies)
Discussion started by: Ariean
11 Replies
LEARN ABOUT OSF1
bdiff
bdiff(1) General Commands Manual bdiff(1)NAME
bdiff - Finds differences in large files
SYNOPSIS
bdiff file1 file2 [number] [-s]
bdiff - file2 [number] [-s]
bdiff file1 - [number] [-s]
The bdiff command compares file1 and file2 and writes information about their differing lines to standard output. If either filename is -
(dash), bdiff reads standard input.
OPTIONS
Suppresses error messages. (May either precede or follow the number argument if it is specified.)
DESCRIPTION
The bdiff command uses diff to find lines that must be changed in two files to make them identical (see the diff command). Its primary
purpose is to permit processing of files that are too large for diff.
The bdiff command ignores lines common to the beginning of both files, splits the remainders into sections of number lines, and runs diff
on the sections. The output is then processed to make it look as if diff had processed the files whole.
If you do not specify number, a system default is used. In some cases, the number you specify or the default number may be too large for
diff. If bdiff fails, specify a smaller value for number and try again.
Note that because of file segmenting, bdiff does not necessarily find the smallest possible set of file differences. In general, although
the output is similar, using bdiff is not the equivalent of using diff.
NOTES
The diff command is executed by a child process, generated by forking, and communicates with bdiff through pipes.
It should not normally be necessary to use this command, since diff can handle most large files.
EXIT STATUS
No differences. Differences found. An error occurred.
SEE ALSO
Commands: diff(1), diff3(1)bdiff(1)