runcon:tldr:6cee8

This command is used to run a command with a specified security context. Here's a breakdown of each part of the command:

• runcon: This is the command to run a program or command with a specific security context.
• ${user}_u:${role}_r:${domain}_t: This specifies the security context to run the command with. ${user}, ${role}, and ${domain} are variables that should be replaced with actual values. Each part of the security context represents the user (${user}_u), the role (${role}_r), and the domain (${domain}_t). User, role, and domain are elements of SELinux security policies.
• ${command}: This is the command you want to run with the specified security context. Replace ${command} with the actual command you want to execute.

Overall, this command runs a specified command with a specific security context, defined by the user, role, and domain parts of the SELinux security policy.