文件导航CLI Manual
$which
Locate the executable binary path of a command in system PATH.
命令语法POSIX Standard
which [OPTIONS] [COMMAND...]在交互式终端沙盒中实时运行
无需安装的客户端实时仿真环境。
bash — terminal
AST Sandbox (Free)
概述与工作原理
`which` searches the directories listed in your `$PATH` environment variable to find and display the absolute location of an executable binary file.
常用参数与选项说明
| Flag / Option | Description |
|---|---|
| -a | Print all matching pathnames of each argument across PATH. |
实际生产案例与代码范例
#1Find where python3 or grep is installed
which grep python3Outputs the binary paths in /usr/bin or /bin.