If the input will later be used as parameters to operating system commands, scripts, and database queries, then it is essential that you do so.

如果输入以后会被用作操作系统命令、脚本和数据库查询的参数，那么对输入进行清理是非常重要的。

youdao

The user doesn't see all the low-level code executions to handle single or multiple commands but rather a very simplistic input, output, and error.

用户不会看到处理单个或多个命令的所有底层代码的执行情况，而是看到非常简单化的输入、输出和错误。

youdao

The xargs command reads standard input and then builds and executes commands with the input as parameters.

xargs 命令读取标准的输入，然后使用参数作为输入构建和执行命令。

youdao

They can also be used for different functions as users can watch a video on one screen and input commands on the other, or check email on one screen and use the other as a soft keyboard.

ENGADGET: Sony S1 and S2 dual-screen Honeycomb tablets get official (video)

The hack is a simple cross-site scripting vulnerability, a flaw in how Skype handles user input and prevents it from being interpreted as commands on the target machine.

FORBES: Researcher Claims Simple Skype Bug Lets Hackers Hijack Contacts' Accounts