looks like I didn't word it properly... you could ask why have sub/gsub when there is sed... that's because you need that for specific field or string in addit

looks like I didn't word it properly... you could ask why have sub/gsub when there is sed... that's because you need that for specific field or string in addition to other processing.. similarly, having tr for specific string/field is useful.. I meant join as in perl's join - to construct a string out of array values with specified separator Some examples: * https://stackoverflow.com/questions/48920626/sort-rows-in-csv-file-without-header-first-column https://stackoverflow.com/questions/48920626/sort-rows-in-cs... * https://stackoverflow.com/questions/45571828/execute-bash-command-inside-awk-and-print-command-output https://stackoverflow.com/questions/45571828/execute-bash-co... * https://stackoverflow.com/questions/48925359/sorting-groups-of-lines https://stackoverflow.com/questions/48925359/sorting-groups-...