Hi there,
I have got the example of trailing a file from "Perl Cookbook":
---
for (;;) {
while () { print $_ }
sleep 1;
seek(FH, 0, 1);
}
---
However, if another program removes (all) lines from the file referenced by
FH, perl looses the trailing (for a undetermined tim
How about putting a file lock on it?
That way if someone tries to access it and write to it, it will not work.
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ril de 2002 12:24
To: Figueira, Bruno [CMPS:003R:EXCH]
Cc: [EMAIL PROTECTED]
Subject: Re: Better "tail -f"
How about putting a file lock on it?
That way if someone tries to access it and write to it, it will not work.
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On Tue, 2002-04-02 at 09:23, [EMAIL PROTECTED] wrote:
> How about putting a file lock on it?
>
> That way if someone tries to access it and write to it, it will not work.
>
One problem with doing this is that POSIX does not require programs to
check to see if a file is locked before
>
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Terça-feira, 2 de Abril de 2002 12:24
> To: Figueira, Bruno [CMPS:003R:EXCH]
> Cc: [EMAIL PROTECTED]
> Subject: Re: Better "tail -f"
>
>
> How about putting a fil
On Tuesday, April 2, 2002, at 04:30 , Bruno Figueira wrote:
> However, if another program removes (all) lines from the file referenced
> by
> FH, perl looses the trailing (for a undetermined time). How do I improve
> this code to understand the file was changed?
I misread your problem - then r
On Tuesday, April 2, 2002, at 07:04 , Nikola Janceski wrote:
> open(TAIL, "tail -f $filename |") or die "no tail $! $?\n";
> while(){
print $_;
> }
> close TAIL;
first off it doesn't seem to work - it is just siting there.
The problem being that 'tail' is looking at the old inode
user do it." ;)
> -Original Message-
> From: drieux [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, April 02, 2002 10:23 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Better "tail -f"
>
>
>
> On Tuesday, April 2, 2002, at 07:04 , Nikola Janceski wrote:
>
D]
Subject: Re: Better "tail -f"
On Tuesday, April 2, 2002, at 04:30 , Bruno Figueira wrote:
> However, if another program removes (all) lines from the file referenced
> by
> FH, perl looses the trailing (for a undetermined time). How do I improve
> this code to understand
