The function 'match' sets RSTART to the index of each match and RLENGTH to its length, and returns 0 when no matches exist. To find the last match on a line, then, all that is necessary is to call it and remove the match until it no longer finds matches, and take the final match. {{{ awk function lastmatch(re, line, result) { while(match(line, re)) { result = substr(line, RSTART, RLENGTH) line = substr(line, RSTART+RLENGTH) } return result } }}}
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This change is a minor edit.
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