Question: 1) Which environment variables are set by reading /etc/passwd? 2) Why are all environment variables represented in a fixed format regardless of the shell you

1) Which environment variables are set by reading /etc/passwd?

2) Why are all environment variables represented in a fixed format regardless of the shell you use?

3) If you have PS1='\!$ ', what will your prompt look like?

4) What is the significance of these Bash commands?

a. !50

b. !-2:p

c. !!

d. ^doc^bak

What are their equivalents in Korn?

5) Why do shells use a profile as well as an rc file? What types of entries do you put in each?

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