Which of the following commands will lock the user foobar’s account?
Which of the following commands will lock the user foobar’s account?
Which command allows you to make a shell variable visible to subshel
Which command allows you to make a shell variable visible to subshells?
Which of the following commands shows ONLY the user id of Bob?
Which of the following commands shows ONLY the user id of Bob?
(Select TWO)
Which of the following is the best way to list all defined shell variables?
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?
To test a shell script called myscript, the environment variable FOOBAR must be removed temporarily.
How can this be done?
What will we see?
We have bash script ~/myscript shown below:
shift echo $2
We call this script:
~/myscript alpha beta gamma delta
What will we see?
What is 12942?
In the following command and its output
$ echo $$
12942
What is 12942?
What BASH environment variable will prevent you from overwriting a file with a “>” or “&g
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?
You need to print 12 copies of the document foo.txt.
Which of the following commands would you use?
What command is used to create a file-system to be burned to a CD?
What command is used to create a file-system to be burned to a CD? (Please enter the command without the path or any
options or parameters)