The command tcpdump is not an internal/native Check Point command. It is a common command-line tool that captures and analyzes network traffic. The other commands are internal/native Check Point commands that perform various functions. For example:

fwaccel on enables SecureXL acceleration on the Security Gateway.

fw ctl debug sets the debug flags for the Firewall kernel module.

cphaprob displays the status and information about ClusterXL or VRRP members.

References: Check Point R81 CLI Reference Guide, pages 11, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27; Check Point R81 Gaia Administration Guide, page 9