You should choose $sel->can_read for the file handle you are reading from (i.e. the filehandle that the other process is writing to).

The filehandle you should test to see if the other program is waiting to read is the filehandle you write to.

In reply to Re^3: finding the status of the program being called from perl by matija
in thread finding the status of the program being called from perl by roseberry123

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