单词2

preserve:   保留，存，区

--preserve[=ATTR_LIST] preserve the specified attributes (default: mode,ownership,timestamps).

allocate  分配，配置

mode  模式

ownership   从属关系

timestamp  时间戳

destine  注定

destination 目的地

-f ,--force  if an existing destination file cannot be opened, remove it and try again (this option is ignored when the -n

option is also used) 

clobber   重写，覆盖

-n,--no-clobber   do not overwrie an existing file (overrides a previous -i option)

previous  先前的

hard link   硬链接

-l, --link hard link files instead of copying 

interactive    交互的

-i, --interactive   prompt before overwrite (overrides a previous -n option)

removal    删除

rm -i      prompt before every removal  

proceed   开始，继续

-r, --recursive are given,then rm prompts the user for whether to proceed with the entire operation.