ls Command

The ls command is used to list the contents of a directory within the HotRIO firmware environment. This command can display the contents of the current directory or a specified directory.

Usage

The ls command has the following syntax:

ls [path]

Where: - path (optional) specifies the directory to list. If no path is provided, the current directory will be used.

Command Description

• Without parameters: When the ls command is executed without any arguments, it lists the contents of the current directory of the shell server.

• With a directory path: If a directory path is provided as an argument, the command will list the contents of that directory. The path must be valid and point to an existing directory; otherwise, an error message will be shown.

Examples

1. List contents of the current directory:

   ls
   

2. List contents of a specified directory:

   ls /home/user/documents
   

3. Attempting to list a non-existent directory will result in an error:

   ls /nonexistent/directory
   Error: No such file or directory
   

Error Handling

If the command encounters issues accessing a directory (due to permissions or other errors), the following messages may be shown: - “Error accessing path” - “Error evaluating path” - “No such file or directory”

Command Execution

When executing the ls command, the system performs the following steps: 1. If no path is provided, the command will attempt to list the contents of the current directory. 2. If a path is provided, the system will validate the path and check if it corresponds to an existing directory. 3. If the directory is valid, the contents of the directory are listed. If not, an error message is displayed.

The ls command ensures that the user is informed about any issues accessing or validating the directory, making it easier to troubleshoot problems with the filesystem.