The Select loop in the shell uses

Select Use Alone

Cat select01.sh #!/bin/bashecho "which car do you prefer?" Select CAR in Benz Audi volkswagendo Breakdoneecho "you chose $CAR"

Run results

SH select01.sh which car do you prefer?1) Benz2) Audi3? 1You chose Benz

Select and case are used together

Cat select02.sh #!/bin/bashselect day in mon tue wed thu fri  Sat Sundo        case  $DAY  in         mon)                  echo  "Today is monday";;         tue)                  echo  "Today is tuesday";;         wed)                  echo  "Today is wednesday";;         thu)                  echo  "Today is thursday";;         fri)                 echo  " Today is friday ";;         sat| Sun)                 echo  "You can have a rest today";;         *)                  echo  "Unknown input ,exit now"  &&  break;;         esacdone

Select in conjunction with case use

SH select02.sh 1) Mon2) Tue3) Wed4) Thu5) Fri6) Sat7? 1Today is monday#? 6You can have a rest today#? 8Unknown input, Exit now

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The Select loop in the shell uses