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.IX Title "File::Compare 3"
.TH File::Compare 3 "2001-09-21" "perl v5.8.8" "Perl Programmers Reference Guide"
File::Compare \- Compare files or filehandles
\& if (compare("file1","file2") == 0) {
\& print "They're equal\en";
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. \fIcompare_text()\fR
accepts an optional third argument: This must be a \s-1CODE\s0 reference to
a line comparison function, which returns 0 when both lines are considered
\& compare_text($file1, $file2)
is basically equivalent to
\& compare_text($file1, $file2, sub {$_[0] ne $_[1]} )
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.
File::Compare was written by Nick Ing\-Simmons.
Its original documentation was written by Chip Salzenberg.