Introducing the shell: The order of the commands

[ATCGpsy]

How could the content be improved?

The order of the commands in this lesson could be improved as follows:

1. pwd: I believe it must be the first command that comes because firstly we have to know in which location of the system we are.
2. ls: is in a good order after the pwd
3. man: because in current order of the commands in this lesson, the flag -F has come before the "man" command and this could mislead a fresh learner that how can we find flags.
4. Then we can use the command ls and flag -F
5. cd: after showing the distinguishing among directories and files and programs using ls -F, this could be a good time to show the application of cd in changing to one of the directories.
6. Then here is a suitable time to show the autocompletion using Tab key. By incompletely typing the name of the directories that we want to change our directory to them.
7. cd: to refer to the home directory after changing our directory to the one which its name had been completed by tab in a previous step.