Hi.

I'm writing a script, which shall be capable of running an external application in the background, catching its STDOUT and STDERR and then write it into a logfile.

The problem is, that the application never exits (e.g. think of edonkey client) and the name of the logfile changes every day.

I tried the following:
while (1){
#generate filename for today => $SCRIPTLOG
if ($SCRIPTLOG ne $SCRIPTLOG_OLD){
        if ($pid ne "") {
        close(LOGTO);
        }
        open(LOGTO, ">> $SCRIPTLOG") 
        select(LOGTO);
    }
$SCRIPTLOG_OLD=$SCRIPTLOG;

if ($pid eq "") $pid=open3(NULL, ">&LOGTO", ">&LOGTO", "application.ex
+e $parameters");

sleep(30);
}

[download]
So every 30 secs is tested if a new day has broken and if so, the logfile $SCRIPTLOG is changed.

However, this doesn't work. application.exe still writes in the old $SCRIPTFILE.

Please help! I already asked in two other Perl places on the web, but they didn't know a solution, either :(

Thorsten

20030410 Edit by Corion: Fixed small typo in title (s/cath/catch/)

In reply to how to catch STDOUT from an external app, that never exits? by ThorstenHirsch

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