| 1 | #!/usr/bin/env bash | 
| 2 | |
| 3 | set -o nounset | 
| 4 | set -o pipefail | 
| 5 | set -o errexit | 
| 6 | |
| 7 | f1() { | 
| 8 | local foo=bar | 
| 9 | foo=1 # can modify it now | 
| 10 | echo $foo | 
| 11 | |
| 12 | readonly foo # not anymore | 
| 13 | #foo=2 # would cause an exception | 
| 14 | echo $foo | 
| 15 | |
| 16 | echo done | 
| 17 | |
| 18 | # This is a GLOBAL, not a local | 
| 19 | readonly f1_readonly=f1_readonly | 
| 20 | } | 
| 21 | |
| 22 | f1 | 
| 23 | |
| 24 | echo $f1_readonly |