Perl5 リファレンス



       tell FILEHANDLE

       tell    Returns the current position for FILEHANDLE.
               FILEHANDLE may be an expression whose value gives
               the name of the actual filehandle.  If FILEHANDLE
               is omitted, assumes the file last read.

               There is no `systell' function.  Use `sysseek(FH,
               0, 1)' for that.


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