String Replacement with Perl

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# 1  
String Replacement with Perl

I want to replace a string within a file using perl.

We have a line that gets commented out, and I want to replace that line now matter how it was commented out.

for example, I'd want to replace

###ES=PR1A with ES=PR1A


##LJW(9/16/26)ES=PR1A with ES=PR1A

I tried: perl -pi -e 's/ES=PR1A\Z/ES=PR1A/' filename

but the comments are not removed.

Thank you in advance for any guidance you can give..

# 2  
I don't know perl, but could this work?
perl -pi -e 's/^#*//1' filename

# 3  
Wouldn't that remove the comments from every line?

I just want to remove comments from a line that contains a particular string
# 4  
Woops, my mistake. Try:
perl -pi -e 's/^#*ES=PR1A/ES=PR1A/1' filename

In any case, what I'm getting at is that with sed, you could do
echo "#abc
##abc" | sed 's/^#*abc/abc/1'

# 5  
AHA! worked beautifully.

Thank you so much !
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