Hi all:
I am writing a script to monitor one file's change using the following code.
#!/usr/bin/perl -w
use strict;
use IO::Handle;
my $file='data.txt'; #file to be monitored
open (FD, "$file") or die $!;
my $oldsize= -s "$file";
my $newsize= -s "$file";
my @change=$newsize-$oldsize;
until ($change[0]!=0){
wait; #wait for file to be changed
}
continue{ #if there were some changes in file
$newsize= -s "$file";
@change=$newsize-$oldsize;
if ($change[0]!=0){
print "The file has been changed";
}
}
close FD;
The file is in a plain text format, such as:
1277435278
1277435343
1277435382
dee
djennga
dega
denga
ddenga
ddjeig
deng
djeng
ddeng
So,is there another method can I do this work in a better way? Any suggestions will be appreciated!
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