Add a script for choosing a block device

scripts/Scripts/choose-disk.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+function chooseDisk() {
+    local -n result="$1" 2>&1;
+    local message="$2";
+    local choice;
+    local disk;
+    local -a disks;
+    local i;
+    disks=();
+
+    while read disk
+    do
+        disks+=("$disk");
+    done < <(lsblk -do NAME,SIZE,TYPE);
+
+    diskCount="$(expr "${#disks[@]}" - 1)";
+    padding="${#diskCount}";
+
+    if [ "$diskCount" -gt 0 ]
+    then
+        while true
+        do
+            echo "$message";
+
+            for i in $(seq 0 "$(expr "$diskCount")")
+            do
+                local index;
+                if [ "$i" -eq 0 ]
+                then
+                    index="";
+                else
+                    index="$i:";
+                fi;
+
+                printf "%$(expr "${diskCount}" + 1)s ${disks[$i]}" "$index";
+                echo "";
+            done;
+
+            read -p "Your choice: " choice;
+
+            if [ "$choice" -ge 1 ] && [ "$choice" -le "$diskCount" ]
+            then
+                disk=(${disks[$choice]});
+                result="/dev/${disk[0]}";
+                return;
+            else
+                >&2 echo "The specified choice \"$choice\" is invalid!";
+            fi;
+        done;
+    else
+        >&2 echo "No valid disk found!";
+    fi;
+}