80 lines
921 B
Bash
Executable File
80 lines
921 B
Bash
Executable File
#!/bin/bash
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# Jack-Benny Persson
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# LX13
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# Övning 4, labb 6
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# Make a calculator that could do add, substract, divide and times
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# Define our variables
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Nr1=$1
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Nr2=$2
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# Sanity check
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if [ $# -ne 2 ]; then
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echo "`basename $0` requires two arguments"
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exit 2
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fi
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if ! [ $Nr1 -eq $Nr1 &> /dev/null ]; then
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echo "`basename $0` only takes integers"
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exit 2
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elif ! [ $Nr2 -eq $Nr2 &> /dev/null ]; then
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echo "`basename $0` only takes integers"
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exit 2
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fi
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# Define our functions
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add()
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{
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Sum=$((Nr1+Nr2))
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return $Sum
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}
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sub()
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{
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Sum=$((Nr1-Nr2))
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return $Sum
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}
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div()
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{
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Sum=$((Nr1/Nr2))
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return $Sum
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}
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tim()
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{
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Sum=$((Nr1*Nr2))
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return $Sum
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}
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# Main
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Calc=`basename $0`
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echo $Calc
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case "$Calc" in
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"add.sh")
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add
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echo $?
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;;
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"sub.sh")
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sub
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echo $?
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;;
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"div.sh")
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div
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echo $?
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;;
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"tim.sh")
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tim
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echo $?
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;;
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*)
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echo "Please use one the symlink add.sh/sub.sh/div.sh/tim.sh"
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exit 2
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;;
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esac
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exit 0
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