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Flushing STDIN

Flushing STDIN

Flushing STDIN

(OP)
Quick question:

while (<STDIN> ne "quit")
{
        chop($data = <STDIN>);
        print STDOUT "standard in was: $data\n";
}


The above reads whatever the user types in and echo's it to the screen. However, there is a problem where only every other data input will get captured i.e.


> ./stdin.pl
1
2
standard in was: 2
3
4
standard in was: 4
5
6
standard in was: 6
7
8
standard in was: 8
9
10
standard in was: 10


How can I ensure that everything written to STDIN will get placed in $data?

Cheers
Loon

RE: Flushing STDIN

You are listening to the STDIN pipe twice.  Each time you use <STDIN>, you are listening for keyboard input.  That is happening 2 times in your snippet.

a minor tweak will fix the problem....make your condition check the value, ($data) recieved from STDIN on the previous loop.

#!perl
while ($data ne "quit")
    {
    chop($data = <STDIN>);
    print STDOUT "standard in was: $data\n";
    }




keep the rudder amid ship and beware the odd typo

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