====== BASH Snippets ======

===== Test if file exists =====

<code bash>
#!/bin/bash

configfile='ca_config.txt'

if [ -e "${configfile}" ]; then
        echo "${configfile} exists."
else
        echo "${configfile} not exists."
        exit 2
fi
</code>


===== Case Statement =====

<code bash>
#!/bin/bash

printf "Select duration: \n1: Choice 1\n2: Choice 2\n3: Choice 3\n"

printf "Choice 1, 2 or 3:- "
read Choice

case "${Choice}" in

  1)
    echo -n 'One'
    Type='One'
    ;;

  2)
    echo -n 'Two'
    Type='Two'
    ;;

  3)
    echo -n 'Three'
    Type='Three'
    ;;
    
  *)
    echo -n 'Invalid choice, select either 1, 2 or 3.'
    ;;
esac

printf "Choice ${Type}\n"

</code>