LPI Level 1

LPI Level 1

Which command allows you to make a shell variable visible to subshel

Which of the following commands shows ONLY the user id of Bob?

Which of the following is the best way to list all defined shell variables?

How to test a shell script called myscript, the environment variable FOOBAR must be removed temporarily?

What will we see?

What BASH environment variable will prevent you from overwriting a file with a “>” or “>>”?

Which of the following commands would you use to print 12 copies of the document foo.txt?