Re^4: How can I print three lines before pattern match?

What does the '' vs. "\n" do?

How could I print also the same line that has the pattern match?

Thank you Sifu,<\p>

Neurotoxx

Comment on Re^4: How can I print three lines before pattern match?

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Re^5: How can I print three lines before pattern match? by ikegami (Patriarch) on Aug 15, 2009 at 02:12 UTC
Print the empty string prints nothing. Printing a newline prints an empty line. `my @history = ('') x 3; while (<>) { print @history, $_ if /pattern/; push @history, $_; shift @history; }` [download] or `my @history = ('') x 4; while (<>) { push @history, $_; shift @history; print @history, $_ if /pattern/; }` [download]	[reply] [d/l] [select]