发布时间:2016-07-15 23:58:01 浏览次数:0
tr命令
tr命令常被用来更改字符(字符替换)
命令格式
tr [选项] set1 set2
常用参数
-d 删除set1的内容,并不作替换
1 2 3 4 5 6 | kighsense:linux_test kighsense$ echo 'my name is huamuyingdao!' | tr 'huamu' 'HUAMU' My nAMe is HUAMUyingdAo! kighsense:linux_test kighsense$ echo 'MY NAME IS HUAMUYINGDAO!' | TR 'A-Z' 'a-z' my name is huamuyingdao! kighsense:linux_test kighsense$ echo 'my name is huamuyingdao!' | tr -d 'huamu' y ne is yingdo! |