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Top Forums Shell Programming and Scripting Diff Command to return the number of lines inserted,deleted and changed. Post 302355102 by nmattam on Monday 21st of September 2009 12:56:25 PM
Old 09-21-2009
Java Diff to retrieve the number of lines

Thanks jim mcnamara for the help. I am new to unix. My actuall requirement is:
I have two versions of directories OLD and LATEST. I need to compare the files in both the versions and list the files that differ in both the veresions. Also i need to list the differences in the number of lines in each different files from the two versions.
Ex:
OLD has files a.txt, b.txt
LATEST has a.txt, b.txt

After Comparison a.txt is similar in both OLD and LATEST. b.txt is modified in LATEST so when diff is done, it is compared and the output should result in the number of lines as discussed above.
 

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DIFF(1) 						      General Commands Manual							   DIFF(1)

NAME
diff - print differences between two files SYNOPSIS
diff [-c | -e | -C n] [-br]file1 file2 OPTIONS
-C n Produce output that contains n lines of context -b Ignore white space when comparing -c Produce output that contains three lines of context -e Produce an ed-script to convert file1 into file2 -r Apply diff recursively to files and directories of EXAMPLES
diff file1 file2 # Print differences between 2 files diff -C 0 file1 file2 # Same as above diff -C 3 file1 file2 # Output three lines of context with every diff -c file1 file2 # Same diff /etc /dev # Compares recursively the directories /etc and /dev diff passwd /etc # Compares ./passwd to /etc/passwd DESCRIPTION
the same name, when file1 and file2 are both directories" difference encountered" Diff compares two files and generates a list of lines telling how the two files differ. Lines may not be longer than 128 characters. If the two arguments on the command line are both directories, diff recursively steps through all subdirectories comparing files of the same name. If a file name is found only in one directory, a diagnostic message is written to stdout. A file that is of either block special, character special or FIFO special type, cannot be compared to any other file. On the other hand, if there is one directory and one file given on the command line, diff tries to compare the file with the same name as file in the directory directory. SEE ALSO
cdiff(1), cmp(1), comm(1), patch(1). DIFF(1)

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