Linux which Command

The Linux which command is used to locate files.

The which command searches for files in the directories specified by the environment variable $PATH.

which [files...]

Parameters:

-n<filename length> Specifies the filename length, the specified length must be greater than or equal to the longest filename among all files.
-p<filename length> Same as the -n parameter, but the <filename length> includes the file's path.
-w Specifies the width of the output field.
-V Displays version information.

To view the absolute path of the "bash" command using the "which" command, enter the following command:

$ which bash

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

/bin/bash                   # Absolute path of the bash executable