系统与进程CLI Manual
$date
Display or set system date and time.
命令语法POSIX Standard
date [OPTIONS] [+FORMAT]在交互式终端沙盒中实时运行
无需安装的客户端实时仿真环境。
bash — terminal
AST Sandbox (Free)
概述与工作原理
`date` prints or sets the system date, time, and timezone. In shell scripts, it is commonly formatted (e.g., `date +%Y-%m-%d`) to generate timestamped backup filenames and logs.
常用参数与选项说明
| Flag / Option | Description |
|---|---|
| +%Y-%m-%d | Format output as Year-Month-Day (e.g., 2026-08-29). |
| -u, --utc | Print date and time in Coordinated Universal Time (UTC). |
实际生产案例与代码范例
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