$ uniq --help
使用法: uniq [OPTION]... [INPUT [OUTPUT]]
Filter adjacent matching lines from INPUT (or standard input),
writing to OUTPUT (or standard output).
With no options, matching lines are merged to the first occurrence.
Mandatory arguments to long options are mandatory for short options too.
-c, --count prefix lines by the number of occurrences
-d, --repeated only print duplicate lines, one for each group
-D print all duplicate lines
--all-repeated[=METHOD] like -D, but allow separating groups
with an empty line;
METHOD={none(default),prepend,separate}
-f, --skip-fields=N avoid comparing the first N fields
--group[=METHOD] show all items, separating groups with an empty line;
METHOD={separate(default),prepend,append,both}
-i, --ignore-case ignore differences in case when comparing
-s, --skip-chars=N avoid comparing the first N characters
-u, --unique only print unique lines
-z, --zero-terminated line delimiter is NUL, not newline
-w, --check-chars=N 行の中で N 文字以上を比較しない
--help この使い方を表示して終了する
--version バージョン情報を表示して終了する
フィールドとは空白類文字 (通常はスペースとタブ) がまとまってあり、その後に非空白類文字
があるものです。文字の前のフィールドはスキップされます。
Note: 'uniq' does not detect repeated lines unless they are adjacent.
You may want to sort the input first, or use 'sort -u' without 'uniq'.
Also, comparisons honor the rules specified by 'LC_COLLATE'.
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report uniq translation bugs to <https://translationproject.org/team/>
Full documentation at: <https://www.gnu.org/software/coreutils/uniq>
or available locally via: info '(coreutils) uniq invocation'
コメント