Re: how to reset the input operater in while loop?

You mean, you want to seek back to the beginning of the file? Assuming the file is seekable (if it's not, you cannot do what you want), you'd use the function seek to seek back to the beginning. perldoc -f seek will give you the details.

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Re^2: how to reset the input operater in while loop? by AnomalousMonk (Archbishop) on Sep 30, 2008 at 07:51 UTC
See also the recent discussion of seek and 'resetting' a file handle in the thread Having Access to a file two times.	[reply]
Re^2: how to reset the input operater in while loop? by JadeNB (Chaplain) on Sep 30, 2008 at 18:51 UTC
Assuming the file is seekable (if it's not, you cannot do what you want) … Why wouldn't GrandFather's approach of `close`-ing and re-`open`ing work even if the filehandle is non-`seek`able? UPDATE: Thanks to JavaFan for a very polite answer to a very silly question.	[reply] [d/l] [select]
Re^3: how to reset the input operater in while loop? by JavaFan (Canon) on Sep 30, 2008 at 21:24 UTC
Because non-seekable usually means the data can only be read only once. Examples of non-seekable handles are (named) pipes, STDIN (usually) and network sockets.	[reply]