hello and welcome to the monastery and to the wonderful world of Perl Daikini

the name of what you are looking for is strange: the flip flop operator.

A more serious description is 'bistable operator'. it is described in docs in the Range Operators.
The normal usage looks like: 
   
   while (<FH>) { print if $_ =~ /start/../end/ }

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ie, as you can see it evaluates true (and in the example above it print because it evaluate true) only since 'start' is matched. It evaluates true until 'end' is matched, after 'end' is matched it evaluetes false.

Please note that for our convenience and hystorical reasons (?) if either opernads of flip-flop .. operator is constant it is considerd true if equal the current line number $. so if you write: 
   
   if (101 .. 200) { print; }

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means: 
 
   if ($. == 101 .. $. == 200) { print; }

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Or, in words: 'print only line from 101 to 200'.

Have also a read of Flipin good, or a total flop? and flip-flop interpolation

HtH
L*
There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

In reply to Re: Getting lines in a file between two patterns by Discipulus
in thread Getting lines in a file between two patterns by Daikini

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