What command will show files stored in the /var/home/tab directory?

The command that correctly shows files stored in the /var/home/tab directory is 'lab@router> ls /var/home/tab'. This command is derived from the Unix/Linux command set and is commonly used to list files and directories within a specified path. In Junos OS, the command syntax mirrors that of standard Unix-like operating systems, where 'ls' effectively serves the purpose of displaying contents in a given directory.

The 'ls' command is well-understood and widely used in various operating systems for file manipulation and directory content listing. When utilized with the appropriate path, it will return a listing of files and subdirectories located within that directory, providing the information needed to the user.

The other commands mentioned do not serve the same function. 'dir' is also a valid command used occasionally in Junos, but 'ls' is the standard for listing directory contents in many environments. The command 'file list' does not exist in Junos for displaying files; it's misleading in the context provided. Lastly, 'show files' is not a valid command syntax within Junos to retrieve such information, as this command is typically reserved for displaying specific configuration or operational state information rather than file listings.

Thus, 'lab@router> ls /var