From e5a32ee865c5324302bdf70906f322e88f8a58e3 Mon Sep 17 00:00:00 2001
From: Nat Quayle Nelson <natquaylenelson@gmail.com>
Date: Fri, 31 May 2024 15:27:10 -0600
Subject: [PATCH] util for bash scripts

---
 util.sh | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 util.sh

diff --git a/util.sh b/util.sh
new file mode 100644
index 0000000..fdc0fae
--- /dev/null
+++ b/util.sh
@@ -0,0 +1,15 @@
+# prompt_char "prompt" <?timeout_sec>
+# Set REPLY to the next char the user types:
+prompt_char () {
+    exec < /dev/tty
+    if [ ! -z "$2" ]; then
+        read -t $2 -p "${1} " -n 1 -r
+    else
+        read -p "${1} " -n 1 -r
+    fi
+    if [ $? -ne 0 ]; then
+        REPLY=n
+    fi
+    echo    # (optional) move to a new line
+    exec <&-
+}
\ No newline at end of file