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1:	Which command will you use to add the values of two variables VAR1 and VAR2 , and store the result in VAR3 ? [ $VAR3 = $VAR1 + $VAR2 ] $VAR3 = [ $VAR1 + $VAR2 ] $VAR3 = (( VAR1 + VAR2 )) $VAR3 = VAR1 + VAR2 ))
2:	You want to wait for 10 seconds at the end of the loop in each loop cycle. Which command will you use? sleep pause wait Any of the three commands can be used.
3:	Consider the following code segment. How many times does the loop execute? A=1 until [ $A < 10 ] do echo $A (( $A=$A+1)) done zero one nine ten
4:	What will be the output of the program shown here? #!/usr/bin/sh A=1 while [ $A -lt 10 ] do B=1 while [ $B -lt 10 ] do break 2 echo "Inner loop" done echo "Outer Loop" done " Inner Loop " will be printed 10 times. " Outer Loop " will be printed 10 times. " Outer Loop " will be printed 9 times. Nothing will be printed.
5:	While writing a program, you meet a situation where you want to break the normal execution and shift control to the beginning of the loop, skipping the remaining commands in the loop. Which command will you use? break continue exit shift

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