do-nothing-script-example.bash

do-nothing-script-example.bash · 1.7 KiB · Bash Raw

#!/bin/bash

function printDivider() {
  local columns
  columns=$(tput cols)
  printf '─%.0s' $(seq 1 "$columns")
  echo ''
}

# Global state
user_name=""
greeting=""

function step1() {
  echo "Step 1: Ask for your name"
  read -rp "Enter your name: " user_name
}

function step2() {
  echo "Step 2: Customize greeting"
  if [[ -z "$user_name" ]]; then
    echo "Name not set. Go back to Step 1."
  else
    read -rp "Enter a greeting for $user_name: " greeting
  fi
}

function step3() {
  echo "Step 3: Display result"
  if [[ -n "$user_name" && -n "$greeting" ]]; then
    echo "$greeting, $user_name!"
  else
    echo "Incomplete information. Go back and complete previous steps."
  fi
}

steps=("step1" "step2" "step3")
current_step=0

function showMenu() {
  echo
  echo -e "[\e[1mn\e[0m] Next    [\e[1mp\e[0m] Previous    [\e[1mq\e[0m] Quit"
  echo -n "Choice: [N/p/q] "
  IFS= read -r -n1 choice
  echo
  [[ -z "$choice" ]] && choice="n"
}

runSteps

1	#!/bin/bash
2
3	function printDivider() {
4	local columns
5	columns=$(tput cols)
6	printf '─%.0s' $(seq 1 "$columns")
7	echo ''
8	}
9
10	# Global state
11	user_name=""
12	greeting=""
13
14	function step1() {
15	echo "Step 1: Ask for your name"
16	read -rp "Enter your name: " user_name
17	}
18
19	function step2() {
20	echo "Step 2: Customize greeting"
21	if [[ -z "$user_name" ]]; then
22	echo "Name not set. Go back to Step 1."
23	else
24	read -rp "Enter a greeting for $user_name: " greeting
25	fi
26	}
27
28	function step3() {
29	echo "Step 3: Display result"
30	if [[ -n "$user_name" && -n "$greeting" ]]; then
31	echo "$greeting, $user_name!"
32	else
33	echo "Incomplete information. Go back and complete previous steps."
34	fi
35	}
36
37	steps=("step1" "step2" "step3")
38	current_step=0
39
40	function showMenu() {
41	echo
42	echo -e "[\e[1mn\e[0m] Next [\e[1mp\e[0m] Previous [\e[1mq\e[0m] Quit"
43	echo -n "Choice: [N/p/q] "
44	IFS= read -r -n1 choice
45	echo
46	[[ -z "$choice" ]] && choice="n"
47	}
48
49	function runSteps() {
50	while true; do
51	clear
52	echo -e "Running \e[1m${steps[$current_step]}\e[0m (Step $((current_step + 1)) of ${#steps[@]})"
53	printDivider
54	"${steps[$current_step]}"
55	printDivider
56	showMenu
57	case "$choice" in
58	n\|N)
59	if (( current_step < ${#steps[@]} - 1 )); then
60	((current_step++))
61	else
62	echo "Already at the last step."; read -rp "Press enter to continue..."
63	fi
64	;;
65	p\|P)
66	if (( current_step > 0 )); then
67	((current_step--))
68	else
69	echo "Already at the first step."; read -rp "Press enter to continue..."
70	fi
71	;;
72	q\|Q)
73	echo "Exiting."
74	break
75	;;
76	*)
77	echo "Invalid input."; read -rp "Press enter to continue..."
78	;;
79	esac
80	done
81	}
82
83	runSteps
84