extract main and banner functions

1 files changed, 26 insertions, 18 deletions

diff --git a/bin/problem-13.sh b/bin/problem-13.sh
index 77cd32e..b29cd4b 100755
--- a/bin/problem-13.sh
+++ b/bin/problem-13.sh
@@ -1,21 +1,29 @@
 #!/bin/sh
 
-echo "Use one of the following options:"
-echo "    d: To display today's date and present time"
-echo "    l: To see the listing of files in your present working directory"
-echo "    w: To see who's logged in"
-echo "    q: To quit this program"
-echo "Enter your option and hit <Enter>:"
+banner() {
+  echo "Use one of the following options:"
+  echo "    d: To display today's date and present time"
+  echo "    l: To see the listing of files in your present working directory"
+  echo "    w: To see who's logged in"
+  echo "    q: To quit this program"
+  echo "Enter your option and hit <Enter>:"
+}
 
-read option
-case "$option" in
-  d) date
-     ;;
-  l) ls
-     ;;
-  w) who
-     ;;
-  q) exit 0
-     ;;
-esac
-exit 0
+main() {
+  banner
+
+  read option
+  case "$option" in
+    d) date
+      ;;
+    l) ls
+      ;;
+    w) who
+      ;;
+    q) exit 0
+      ;;
+  esac
+  exit 0
+}
+
+main