$ perl use feature ":5.14"; use warnings FATAL => qw(all); use strict; my $var = << 'END'; 11,2222222,"xxxxxx'x xxxxxxx, xxxxxxxxx",sssss (aaa 111) 1111-a ,aaaaaaa aa ,aaaaaa, ,xxxxxxxx,dd/dd/dd,xx, system('echo bad command executed!!'),111111 END say eval [split /,\s*/, $var]->[-2] bad command executed!! 0 #### use feature ":5.14"; use warnings FATAL => qw(all); use strict; my $var = << 'END'; 11,2222222,"xxxxxx'x xxxxxxx, xxxxxxxxx",sssss (aaa 111) 1111-a ,aaaaaaa aa ,aaaaaa, ,xxxxxxxx,dd/dd/dd,xx, (195.14) ,111111 END my $interest = split /,\s*/, $var)[-2]; $interest =~ tr/0-9.//cd; say $interest;