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16 changes: 16 additions & 0 deletions 2019-01-17.md
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Expand Up @@ -100,3 +100,19 @@ echo $num

sh operacion 1*5
```
# Ejercicios avanzado: realizar un script que haga las siguientes operaciones matemáticas: suma, resta, multiplicación y división
## Solución 1
```Bash
#hacer esto en nano.
echo -n "introduzca primer numero:"
read n1
echo -n "introduzca segundo numero:"
read n2
Resultado=(expr $n1 $op $n2)
echo "$n1 $op $n2 = $Resultado"
#Luego en la pantalla principal hacer un sh de prueba1 que es como lo hemos llamado.
sh prueba1
```
op=0

if [ $op -eq 0 ]; then