# htop
#
# Display dynamic real-time information about running processes.  An enhanced version of top.

# Start htop:
  htop

# Start htop displaying only processes owned by given user:
  htop -u user_name

# Refresh every 10 seconds
htop -d 10

# Get help about interactive commands:
  ?

# Inverts the sort order
  I

# Trace a process (with strace)
  s