0

I'd really appreciate help with this. I have 3 strings and I want to echo one of them randomly.

INTRO0="Welcome to Foo"
INTRO1="Foo welcomes you"
INTRO2="We are glad to see you at Foo"

R=$((RANDOM%3))

echo $INTRO${R}

I expect it to expand the value of R so it'll interpret it as e.g. echo $INTRO1

I've made it work with if statements where it checks the value of R and prints the appropriate INTRO, but if I had 10 strings it would get messy with if statements. Is it possible to do it this way?

Thanks

Rich Smith
  • 3
  • 1

1 Answers1

0

For bash:

intro_r=INTRO$R
echo ${!intro_r}

But I would use a single array intro instead of three individual variables INTRO1 and so on:

intro=( "..." "..." "..." )
echo ${intro[$R]}
user1934428
  • 19,864
  • 7
  • 42
  • 87