The OP asked to have it run for 100ms, not 100 lines. Your program may hang for an unknown time, it may be days before you've read 100 lines.

I would open a pipe, use a select loop and sysread to read from the pipe. After 100ms, terminate the loop and the pipe.

In reply to Re^2: Using Linux Commands in Perl - `Backticks` by JavaFan
in thread Using Linux Commands in Perl - `Backticks` by ThirtySecondNoob

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