16 мая 2013 г. · sort | uniq existed before sort -u, and is compatible with a wider range of systems, although almost all modern systems do support -u -- it's POSIX.

30 мая 2022 г. · No, they're not the same. For one, sort would sort the list first; and second, uniq -u prints only those lines that are "unique" in each given run.

25 авг. 2019 г. · Strictly speaking, uniq doesn't need sorted input - but it is true that uniq will only remove consecutive duplicate lines.

26 нояб. 2014 г. · Piping the output into sort organises the output into alphabetical/numerical order. This is a requirement because uniq only matches on repeated lines.

10 мая 2014 г. · The work of uniq is very cheap, since it only has to compare adjacent lines of its input. sort -u This combines the work of sort | uniq .

29 июн. 2018 г. · GNU sort works in parallel by default, so no need to specify --parallel unless you want to use fewer threads than CPU cores or more than 8 ones.

24 сент. 2017 г. · sort -u and sort | uniq do produce the same output*: all of the lines in the input, exactly once each, in ascending order.

30 мар. 2015 г. · The uniq is in awk typically accomplished by saving the "unique data element or key" in an associative array and checking whether new data need to be memorized.

17 апр. 2019 г. · In your problem, we need to first sort the first column and then the second one. So there is a -k 1,1 followed by -k 2,2. But, the second key ( ...

15 июл. 2019 г. · I have a list with 1601 lines, where on each line, I am interested in counting the # of times different values appear for fields 5.