使用Perl仅替换字符串的一部分

Question

I have an array that have some symbols that I want to remove and even thought I find a solution, I will like to know if this is the right way because I'm afraid if I use it with array will remove the character that I might need on future arrays.

Here is an example item on my array:

$string1='22      |      logging monitor informational';

so I try the following:

$string1=~ s/\s{6}\|(?=\s{6})//;

So my output is:

22      logging monitor informational

Is the other way that best match "|". I just want to remove the pipe character.

Thanks in advance

Answer 1

"I want to remove just the pipe character."

OK, then do this:

$string1 =~ s/\|//;

This will remove the first pipe character in the string. (You said in another comment that you don't want to remove any additional pipe characters.) If that's not what you want, then I'd suggest telling us exactly what you do want. We can't read minds, you know.

In the mean time, I'd also strongly recommend reading the Perl regular expressions tutorial .