echo command:-
Is used to output text to the console
Which of the following are correct about for and while loops?
-
for loops operate over a fixed list of items
-
while loops have a test each cycle to determine if it should run again
Given the following part of a script:
if [ -f $1 ]; then
echo I am here
fi
What is the meaning of $1?-
It is the first argument passed to the script
What is the correct way to assign the word "Hello" to a variable?
-
A=Hello
Which shell command accepts input from the users keyboard?
-
read
What information is held inside
$? ?-
The previous commands exit code
The
if command looks for what exit code to consider a condition to be true?-
0
A conditional that lets you make multiple comparisons with a pattern is called:
-
case
What is the meaning of
$(( $i + 1)) ?-
1 will be added to the i variable
How would you write a test that says if /tmp/foo is a directory or USERS is greater than 5?
-
test d /tmp/foo o $USERS gt 5
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