Yes, it could be achieved by opening the file in read+write mode, or by re-opening the file in write mode after its read-only filehandle was closed. However, either of these methods would require other code changes, to hold all the lines of output until after all the input had occurred. The simplest way is to append this code to the bottom of my previous code:

unlink $in_path
    or die "Could not delete '$in_path': $!";

use File::Copy;
move( $out_path, $in_path )
    or die "Could not move file '$out_path' to '$in_path': $!";
[download]

---

---

• Are you posting in the right place? Check out Where do I post X? to know for sure.
• Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:

  <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>

• Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
• Want more info? How to link or How to display code and escape characters are good places to start.