biscuide revised this gist . Go to revision
1 file changed, 83 insertions
do-nothing-script-example.bash(file created)
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| 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 | |
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