自己收集而已,sort的选项实例。
# cat numbers
tree
until
what
book
# sort numbers | uniq //显示唯一的,排序后的记录,重复则仅取唯一行
# sort numbers | uniq -c //计数唯一的,排序后的记录
1 book
2 tree
2 until
1 what
# sort numbers | uniq -d //仅显示重复的记录
# sort numbers | uniq -u //仅显示未重复的记录
-----------------------------------------------------------------------------------------------------------------
# echo who are you | wc //计数报告
1 3 12
# echo who are you | wc -l //计数行数
1
# echo who are you | wc -c //计算字节数
12
# echo who are you | wc -w //计算字数
3
本文转自 zhangzj1030 51CTO博客,原文链接:http://blog.51cto.com/tech110/251190