os week 2

1 files changed, 13 insertions, 0 deletions

diff --git a/os1w2/func b/os1w2/func
new file mode 100755
index 0000000..a194988
--- /dev/null
+++ b/os1w2/func
@@ -0,0 +1,13 @@
+#!/bin/sh
+usage() {
+  echo "$0: usage: $0 -u"
+  exit 1
+}
+
+[ -z "$1" ] && usage
+
+case "$1" in
+  "-u") id -un ;;
+  *) usage ;;
+esac
+