File::Compare(3p) Perl Programmers Reference Guide File::Compare(3p) #

File::Compare(3p) Perl Programmers Reference Guide File::Compare(3p)

NNAAMMEE #

 File::Compare - Compare files or filehandles

SSYYNNOOPPSSIISS #

         use File::Compare;

         if (compare("file1","file2") == 0) {
             print "They're equal\n";
         }

DDEESSCCRRIIPPTTIIOONN #

 The File::Compare::compare function compares the contents of two sources,
 each of which can be a file or a file handle.  It is exported from
 File::Compare by default.

 File::Compare::cmp is a synonym for File::Compare::compare.  It is
 exported from File::Compare only by request.

 File::Compare::compare_text does a line by line comparison of the two
 files. It stops as soon as a difference is detected. ccoommppaarree__tteexxtt(())
 accepts an optional third argument: This must be a CODE reference to a
 line comparison function, which returns 0 when both lines are considered
 equal. For example:

     compare_text($file1, $file2)

 is basically equivalent to

     compare_text($file1, $file2, sub {$_[0] ne $_[1]} )

RREETTUURRNN #

 File::Compare::compare and its sibling functions return 0 if the files
 are equal, 1 if the files are unequal, or -1 if an error was encountered.

AAUUTTHHOORR #

 File::Compare was written by Nick Ing-Simmons.  Its original
 documentation was written by Chip Salzenberg.

perl v5.36.3 2023-02-15 File::Compare(3p)