my $gpg = '/home/gpghrp/.gnupg';
my $file = "$gpg/scripts/gpg_encr.saved";
my $temp = "$file.new";
open(OLD, '<', $file)
or die "Can't open $file: $!\n";
open(NEW, '>', $temp)
or die "Can't create $temp: $!\n";
while (<OLD>) {
# Faster than regexp for plain text.
if (index($_, '(?)readonly tlx=') >= 0) {
substr($_, 13, 8, "blah");
}
print NEW $_;
}
close(NEW);
close(OLD);
rename($temp, $file)
or die "Can't update $file: $!\n";
or as a one-liner:
perl -i -pe '/\Q(?)readonly tlx=\E/ && substr($_,13,8,"blah");' /home/
+gpghrp/.gnupg/scripts/gpg_encr.saved
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