Delete line from string using perl

rajeshkumar created the topic: Delete line from string using perl

Questions:
Delete line from string using perl
Delete entry from array based on custom duplicate value.
How to delete lines that match certain pattern
============================
$info = ”
This is Rajesh
This is Ram
This is test
This is Raju
”

Some solutions which i found on net but none of them seems working.

Sol1

if($line =~ /MatchText/){
$line =~ s/ReplaceMe/REPLACED/gi;
}

Sol2

perl -ni -e 'print unless /pattern/' /path/to/filename

Sol3
$ cat /path/to/file | perl -e 'while(<>){ if( /pattern/ ) { $linecount++; } else { print "$_"; } } print STDERR "Deleted $linecount lines.\n"' > /path/to/newfile

Sol4
$_ = "$delete"; #readin file content into standard variable
s/pattern//g; #pattern will get replaced by nothing globally
$delete = $_; #new file content back into old file

Sol5

sed -e '/Bob/d' -e '/Mary/d' outfile

Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

Rajesh Kumar

I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.

I publish technical articles at DevOps School, travel stories at Holiday Landmark, stock market insights at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow, and SEO and digital marketing strategies at Wizbrand.