How do I change a user input variable? - bash

Question

Here is what I have
echo "Please select an Environment "
PS3="Please enter 1-6: "
select env in dev qa test staging production quit
do
case $env in
dev|qa|test|staging|production|quit)
break
;;
*)
break
;;
esac
done
echo $env
What I want is when someone selects and env variable I want to translate it.
For example Production would translate to $env=portal

Answer 1

Script:
#!/usr/bin/env bash
declare -ar OPTIONS=('dev' 'qa' 'test' 'quit')
PS3="Please enter 1-${#OPTIONS[#]}: "
select OPTION in "${OPTIONS[#]}"
do
case ${OPTION} in
'dev')
env='Development environment'
break
;;
'qa')
env='Quality Assurance environment'
break
;;
'test')
env='Test environment'
break
;;
'quit')
echo 'See ya' && exit 0
;;
*) echo 'invalid option';;
esac
done
echo "env = ${env}"
exit 0
Example of usage:
$ ./so_q28397293.sh
1) dev
2) qa
3) test
4) quit
Please enter 1-4: 1
env = Development environment
$ ./so_q28397293.sh
1) dev
2) qa
3) test
4) quit
Please enter 1-4: 5
invalid option
Please enter 1-4: 4
See ya
$
Is it what you wanted?
Don't forget that test is reserved word in Bash(that is why I quoted it):
$ bash -c "help test"
test: test [expr]
Evaluate conditional expression.
Exits with a status of 0 (true) or 1 (false) depending on
the evaluation of EXPR. Expressions may be unary or binary. Unary
expressions are often used to examine the status of a file. There
are string operators and numeric comparison operators as well.
...

Answer 2

You can try:
echo "Please select an Environment "
echo -n "Please enter 1-6: "
read ARG
case $ARG in
1) ENV="dev" ;;
2) ENV="qa" ;;
#etc
esac
echo $env