====== LU05.L02: Rechner ======
<code bash>
#! /bin/bash
# author: Marcel Suter - BZZ
resultat=`expr $1 + $2`
echo "$1 + $2 = $resultat"

resultat=$(($3 - $1))
echo "$3 - $1 = $resultat"

let resultat=$2*$3
echo "$2 * $3 = $resultat"

</code>

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{{tag>M122-LU05}}
[[https://creativecommons.org/licenses/by-nc-sa/4.0/|{{https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png}}]] Marcel Suter