How to use which command in Linux?

The function of which command in Linux is to search for the location of a certain system command in the path specified by the PATH variable and return the first search result. Its usage is "which [file...]" , its parameters include "-n", "-p", "-w" and "-V".

Linux which command is used to find files.

which command will search for files that meet the conditions in the directory set by the environment variable $PATH.

which Syntax

which [文件...]

which Parameter

-n Specifies the file name length, specified The length must be greater than or equal to the longest file name of all files.

-p Same as the -n parameter, but the here includes the path of the file.

-w Specifies the width of the field during output.

-V Display version information.

which Example

Use the command "which" to view the absolute path of the command "bash", enter the following command:

$ which bash

After executing the above command , the output information is as follows:

/bin/bash                   #bash可执行程序的绝对路径

Recommended tutorial: "Linux Operation and Maintenance"

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