$_ = /^(IPR\d+).*/

That doesn't do what you think it does.

To match against a variable, you use the binding operator (=~) not the assignment operator.

But, of course, you don't need to explicitly bind to $_ as that's the default operand for the match operator. So you can rewrite that as just:

/^(IPR\d+).*/

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In reply to Re: I could not use more than one IF ($_ = / /) condition for a single line by davorg
in thread I could not use more than one IF ($_ = / /) condition for a single line by jawsai1224

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