monitor unix file for string

[jamesjesse68]

Hello,

I have a requirement to monitor a log file in unix using perl 5.8.
Needed is detection of "error" in a line appended to the file.
Also need to detect if "complete" is not found after, say, 5 hours
after invocation.

I expect there is a hard way and an easy way to do this - could some
kind person advise me?
Pointers to Fine Perldocs welcome!

TIA

JJ

 

[Josef Moellers]

Hello,

I have a requirement to monitor a log file in unix using perl 5.8.
Needed is detection of "error" in a line appended to the file.
Also need to detect if "complete" is not found after, say, 5 hours
after invocation.

I expect there is a hard way and an easy way to do this - could some
kind person advise me?
Pointers to Fine Perldocs welcome!

perldoc -q tail

How do I do a "tail -f" in perl?

HTH,

Josef

 

[Peter Makholm]

Hello,

I have a requirement to monitor a log file in unix using perl 5.8.
Needed is detection of "error" in a line appended to the file.

'perldoc -q tail'

Also need to detect if "complete" is not found after, say, 5 hours
after invocation.

'perldoc -f alarm'

might be two useful pointers.

//Makholm