$ cat test/sample.csv
2020-04-01 01:23,user01,male,17
2020-04-01 02:34,user02,female,27
2020-04-01 03:45,user03,male,37
$ grep female test/sample.csv
2020-04-01 02:34,user02,female,27
$ emacro '^S,user^D^D' test/sample.csv
2020-04-01 01:23,user,male,17
2020-04-01 02:34,user,female,27
2020-04-01 03:45,user,male,37