Script para imprimir todos los parámetros de script y verificar que tenga de uno a tres parámetros.

 

#!/bin/bash

if [ "$#" -lt 1 ] || [ "$#" -gt 3 ]; then
  echo  "An invalid number of parameters. Provide from one to three parameters"
  #Most tools like ls also return 2 on invalid arguments.
  exit 2
fi 
printf "Number of Parameters:\t $# \n\n" ,
printf "Parametros: \t$*\n\n"
Bash

 

 

Ejemplos de ejecución:

 

[aurlen@monitor tmp]$ ./parametros.sh
An invalid number of parameters. Provide from one to three parameters
[aurlen@monitor tmp]$
[aurlen@monitor tmp]$
[aurlen@monitor tmp]$ ./parametros.sh  1 dos 3
Number of Parameters:    3

Parametros:     1 dos 3

[aurlen@monitor tmp]$ ./parametros.sh  1 dos 3 cuatro
An invalid number of parameters. Provide from one to three parameters
[aurlen@monitor tmp]$
[aurlen@monitor tmp]$
[aurlen@monitor tmp]$
Bash