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Syntax
Definition and UsageSets the default filehandle for output to FILEHANDLE, setting the filehandle used by functions such as print and write if no filehandle is specified. If FILEHANDLE is not specified, then it returns the name of the current default filehandle. select (RBITS, WBITS, EBITS, TIMEOUT )Calls the system function select( ) using the bits specified. The select function sets the controls for handling non-blocking I/O requests. Returns the number of filehandles awaiting I/O in scalar context, or the number of waiting filehandles and the time remaining in a list context Return Value
Example
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