finishing the linux command line introcourse

i finished this course finally.  it was quick overall.  i learned a lot, but i took breaks between classes.  by the end of the course i my shell terminal had stopped working and i couldnt remember how to start it up again.  i guess i need to review.  the quizzes were good, but it was hard to practice without a working shell terminal.  oh well.  the most important thing I learned was to read the manual for different commands, and to use google search. i might take some of their other linux courses, too.