~> tldr uniq uniq Output the unique lines from the given input or file. Since it does not detect repeated lines unless they are adjacent, we need to sort them first. - Display each line once: sort {{file}} | uniq - Display only unique lines: sort {{file}} | uniq -u - Display only duplicate lines: sort {{file}} | uniq -d - Display number of occurrences of each line along with that line: sort {{file}} | uniq -c - Display number of occurrences of each line, sorted by the most frequent: sort {{file}} | uniq -c | sort -nr
因为 uniq
只能处理邻接的行,所以需要先排序才能去重。
工具 tldr (tl; dr -> too long, do not read.)
项目主页。