xargs - a reconstruction tool of standard input

本文链接：https://blog.youkuaiyun.com/jevens17/article/details/5684540

linux管道工具集中一个相当有用的小tool，从名字中即可看出，主要是从来处理标准输入中的arguments，可以对一批arguments进行重组，提示，位置替换等功能。（为何要重组：和shell命令一次最多能处理多少argument有关，替换可以使命令更加灵活）

标准用法：

xargs [options] [command ]

适用场景 ：配合ls、find等使用

Option	Description
`-n#`	Execute command once for every # argument. For example, -n2 bundles arguments into groups of two or less and executes command on each argument bundle.
`-l#`	Execute command once for every # lines of input. For example, -l1 creates a bundle of arguments for every one line of input and executes command on each argument bundle.
`-i`	Normally xargs places input arguments at the end of command . Used with the -i option, xargs will replace all instances of {} with input arguments. You need to put them in single brackets or use a backslash (/) before each bracket to keep the shell from interpreting the special characters.
`-t`	Echo each command before executing. Nice for debugging
`-p`	Prompts the user before executing each command . Useful for debugging.