Embedded Exam Shell Programming problem

MCU and embedded system exam shell Programming question Bank, simply made the next.

9. Similar to the title 7, there is a multiplication operation.

#!/bin/bash# test1.SH# 2016.1.2  Echo "Please input N student grade:"Read-A grade for((i=0; i<${#grade [@]};i++)) Do    if[[${grade[i]}-ge - ]]     ThenGrade[i]=5    elif[[${grade[i]}-ge the ]]     ThenGrade[i]=4    elif[[${grade[i]}-ge - ]]     ThenGrade[i]=3    elif[[${grade[i]}-ge - ]]     ThenGrade[i]=2    ElseGrade[i]=1    fi Done#Echo${grade[*]}Echo${grade[*]} > Score.dat

#!/bin/bash# test2.SH# 2016.1.2Echo "Please input N number:"Read-a arr for((i=0; i<${#arr [@]};i++)) Do     for(j=${#arr [@]}-1; j>i;j--))     Do        if[[${arr[j]}-lt ${arr[j-1]} ]]         ThenT=${arr[j]} Arr[j]=${arr[j-1]} arr[j-1]=$tfi     Done DoneEcho${arr[*]} > Result.dat

#!/bin/bash# test3. SH  2016.1. 2  /homeif test-e Tesh. SH  then    RM Tesh. SH Else    Touch Tesh. SH fi

#!/bin/bash# test4.SH# 2016.1.2if[-Z" $" ] Then    Echo "You should input N num!"Exit1fiMax=$1min=$1 forNuminch$* Do    if[$num-GT $max] ThenMax=$numfi    if[$num-LT $min] Thenmin=$numfi DoneEcho "Max: $max, Min: $min"

#!/bin/bash# test5. SH  2016.1. 2 J=0;  for ((i=1; i<=; i++))  Do     J= 'expr $i + $j 'doneecho $j

#!/bin/bash# Test6.SH# 2016.1.2Echo "Input 1 Char:"read aif[$a ='Y' ] Then    Echo "right!"elif[$a ='N' ] Then    Echo "wrong!"Else    Echo "Bad input!"fi

#!/bin/bash# test7.SH# 2016.1.2Echo "Input 2 Number:"Read Aread bEcho "Input + or-:"Read OPif[$OP ='+' ] Thenx=`Expr$a +$b 'elif[$OP ='-' ] Thenx=`Expr$a-$b 'fiEcho$x

#!/bin/bash# test8. SH  2016.1. 2  /homeif test-D examthen    RM -r exam  else    mkdir  examfi

#!/bin/bash# Test9.SH# 2016.1.2Echo "Input 2 Number:"Read Aread bEcho "Input + or-or x:"Read OPif[$OP ='+' ] Thenx=`Expr$a +$b 'elif[$OP ='-' ] Thenx=`Expr$a-$b 'elif[$OP ='x' ] Thenx=`Expr$a \*$b 'fiEcho$x

Ok!

Embedded Exam Shell Programming problem