bill lam wrote:
Sorry this must be a faq but I cannot find any answer in google.
Google?? If you think it's a FAQ, you'd better check the Perl FAQ.
perldoc -q "insert a line"
Suppose I want to change 2 lines to 3 line in files as follow using perl
-p -i -e command
aa
bb
aa
cc
bb
this doesn't work
perl -p -i -e "s/aa\nbb/aa\ncc\nbb/g;" foo.txt
what is the correct command (I use linux).
Personally I would prefer a separate Perl script for this task.
open my $fh, '+<', 'file.txt' or die $!;
my $data;
{
local $/;
$data = <$fh>;
}
$data =~ s/aa\nbb/aa\ncc\nbb/g;
seek $fh, 0, 0;
print $fh $data;
More typing, but easier to see what you are doing.
--
Gunnar Hjalmarsson
Email: http://www.gunnar.cc/cgi-bin/contact.pl
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
http://learn.perl.org/
