Hello see inline comment
Am Dienstag, 8. März 2005 02.04 schrieb David Storrs: > On Mon, Mar 07, 2005 at 11:00:49AM -0500, Wiggins d'Anconia wrote: > > Charles K. Clarkson wrote: > > >Suneel Kumar B <mailto:[EMAIL PROTECTED]> wrote: > > >: I have a situation where in, iam updating a file by replacing few > > >: strings in some lines with another string. While doing this, Can i > > >: have an option by which i could open a file for both read and > > >: write simultaneously, so that i could search and replace the > > >: string straight away..?? > > > > > > Sounds like you need in place editing. Check out the -i switch > > >in the 'perlrun' documentation for an example. > > > > > >Charles K. Clarkson > > > > or Tie::File, > > > > perldoc Tie::File > > > > http://danconia.org > > The literal answer to your question would be this: > > open FILE, '/path/to/the/file', '+<' > or die "Couldn't open: $!"; open FILE, '+<', '/path/to/the/file' or die "Couldn't open: $!"; (see order of arguments) perldoc -f open > or, preferably (as it will manage some safety issues for you): > > use IO::File; > my $file = new IO::File('/path/to/the/file', '+<') > or die "Couldn't open: $!"; > > This isn't a great solution for updating text files, however, since > they have variable-length records (e.g., you overwrite a 10-character > sentence with 12 characters and you have just stomped on the next 2 > characters). > > One of the above solutions (-i or Tie::File) will stand you in better > stead. > > --Dks > > -- > [EMAIL PROTECTED] -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
