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$orig='aaa([\+\-]{1})bbb'; $res = '([\\+\\-]{'; ... $str=$orig; $str =~ s!$qres!!; print "Replace against variable quoted => $qres <=: $str\n";
Replace against variable quoted => ([\+\-]{ <=: aaa1})bbb Replace against variable quoted => \Q$res\E <=: aaa([\+\-]{1})bbb
$"=q;grep;;$,=q"grep";for(`find . -name ".saves*~"`){s;$/;;;/(.*-(\d+) +-.*)$/; $_=["ps -e -o pid | "," $2 | "," -v "," "];`@$_`?{print"+ $1"}:{print" +- $1"}&&`rm $1`; print$\;}