perl 함수 : open

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#!/usr/bin/perl
$file = "myfile.txt";
open(FP, "< $file") || die "cannot open file : $file";
while($line = <FP>)
{
    print $line;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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#!/usr/bin/perl
if ($#ARGV != 1)
{
    print "Usage $0 source dest\n";
    exit(1);
}
$source = $ARGV[0];
$dest = $ARGV[1];
open(SOURCE_FP, "< $source") || die "cannot open file : $file";
(-e $dest) && die "Oops! A file called '$dest' already exists.\n";
open(DEST_FP, "> $dest") || die "cannot open file : $dest";
while($line = <SOURCE_FP>)
{
    print DEST_FP $line;
}
print "Copy Cussess : $source => $dest\n";
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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