Re: reading output from another script

    open my $pipe => "tail -f /syslog.log" or die "Fork failed: $!";
    while (<$pipe>) {
        ... whatever ...
    }
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But beaware of pipe buffers.

Abigail

Comment on Re: reading output from another script Download Code

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Re: Re: reading output from another script by zby (Vicar) on Jul 23, 2003 at 14:40 UTC
This assumes the stream would be line oriented. Of course that should be true for most circumstances (he even mentions tail -f). But if it is not things get a bit more tricky and he would need to read character by character by some low level system call.	[reply]
Re: reading output from another script by Abigail-II (Bishop) on Jul 23, 2003 at 14:53 UTC
Well, yeah, and things could even be more tricky if the read in characters are in some strange encoding, and an obscure language. ;-) I read the article from the OP as if (s)he had problems with the fact that the source (s)he's reading from continues to produce data - not that (s)he needed help with non line oriented input. But even if you want to read byte by byte, just do a `S/ = \1` before reading. Abigail	[reply]