If your data is homogeneous, you can use split, if you want, as alternative to regex (use undef to discard the values that are not interesting for you):

my (undef,undef,undef,$val,undef,undef)=split /\s/,"28504 0 abc 148782859 42 101M";

$val have the value that you need in this example

In reply to Re: regular expressions on the basis of suffix by i5513
in thread regular expressions on the basis of suffix by Anonymous Monk

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