sudo port install htop
Password:
--->  Computing dependencies for htop
--->  Fetching htop
--->  Verifying checksum(s) for htop
--->  Extracting htop
--->  Configuring htop
--->  Building htop
--->  Staging htop into destroot
--->  Installing htop @0.8.3_1
--->  Activating htop @0.8.3_1
--->  Cleaning htop
##</code><code>##

  1  [||||||||||||||||||||||||||||||||||||||100.0%]     Tasks: 139 total, 3 running
  2  [||||||||||||||||||||||||||||||||||||||100.0%]     Load average: 2.68 1.35 0.96 
  Mem[|||||||||||||||||||||||||||||||||3802/4096MB]     Uptime: 19 days, 20:59:05