add 3 lectures for SFedU

Komp_obr_SFedU/Materials4Pract/01/case

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+while [ -n "$1" ];do
+  case "$1" in
+    -a) echo "Found the -a option" ;;
+    -b) echo "Found the -b option" ;;
+    -c) echo "Found the -c option" ;;
+    *) echo "$1 is not an option" ;;
+  esac
+  shift
+done