Which command is used to display the security context of processes?

The command used to display the security context of processes is the "ps" command. This command provides information about currently running processes, including their process IDs, terminal associations, time spent running, and their current status. Importantly, with the appropriate options, "ps" can also show the security context of processes when the system is configured to use SELinux (Security-Enhanced Linux) or similar security mechanisms.

When using "ps", you can include options such as -Z to display the SELinux security context along with other details about each process. This feature is essential for system administrators and security professionals who need to monitor and manage security contexts within their Linux environments.

The other commands listed do not serve this specific purpose. For example, "ls" is primarily used to list directory contents, "cat" is used to concatenate and display file contents, and "top" is a dynamic real-time view of the running system, providing information about processes but not focusing specifically on their security contexts. Thus, "ps" is uniquely suited for displaying detailed information about the security context of processes.