Upload files to "OS/bash/Week4"

Signed-off-by: Aadit Agrawal <tech@aaditagrawal.com>

OS/bash/Week4/q3.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+selection_sort()
+{
+    local arr=("$@") # array declaration
+    local n=${#arr[@]}
+
+    for ((i=0; i<n-1; i++)); do
+        min=$i
+        for ((j=i+1; j<n; j++)); do
+            if [[ ${arr[j]} < ${arr[min]} ]]; then
+                min=$j
+            fi
+        done
+
+        temp="${arr[min]}"
+        arr[min]="${arr[i]}"
+        arr[i]="$temp"
+    done
+
+    for element in "${arr[@]}"; do
+        echo "$element"
+    done
+}
+
+selection_sort "$@"