How to tell if handle is open?

[Irving Kimura]

How can my script tell whether a filehandle is open?

TIA,

Irv

 

[J Krugman]

How can my script tell whether a filehandle is open?

Check for a nonzero return value from fileno. E.g.

close OUT if fileno(OUT);

jill

 

[J Krugman]

Correction: I meant to write 'look for a *defined* return value
from fileno'.

Sorry.

jill

 

[Ben Morrow]

How can my script tell whether a filehandle is open?

Use Scalar::Util.

Ben