| 1 | #!/usr/bin/env bash | 
| 2 | set -euo pipefail | 
| 3 | |
| 4 | read-one () { | 
| 5 | # try typing a letter without hitting newline | 
| 6 | # the shell should respond immediately | 
| 7 | read -n 1 | 
| 8 | echo | 
| 9 | echo "$REPLY" | 
| 10 | } | 
| 11 | |
| 12 | read-multiple () { | 
| 13 | read -n 5 | 
| 14 | echo | 
| 15 | echo "$REPLY" | 
| 16 | } | 
| 17 | |
| 18 | all () { | 
| 19 | echo "one char:" | 
| 20 | read-one | 
| 21 | echo "multiple chars:" | 
| 22 | read-multiple | 
| 23 | } | 
| 24 | |
| 25 | "$@" |