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30 lines
No EOL
483 B
Awk
30 lines
No EOL
483 B
Awk
# awk -f math2
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BEGIN {
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myprompt = "(To Stop press CTRL+D) > "
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printf "Welcome to MyAddtion calculation awk program v0.1\n"
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printf "%s" ,myprompt
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}
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{
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no1 = $1
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op = $2
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no2 = $3
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ans = 0
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if ( op == "+" )
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{
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ans = $1 + $3
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printf "%d %c %d = %d\n" ,no1,op,no2,ans
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printf "%s" ,myprompt
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}
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else
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{
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printf "Opps!Error I only know how to add.\nSyntax: number1 + number2\n"
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printf "%s" ,myprompt
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}
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}
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END {
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printf "\nGoodbye, %s\n !" , ENVIRON["USER"]
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} |