write a shell script to send a message to a user on the machine

1 files changed, 11 insertions, 0 deletions

diff --git a/bin/greet b/bin/greet
new file mode 100755
index 0000000..947958e
--- /dev/null
+++ b/bin/greet
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+cd "$(dirname "$0")/.."
+USER=${1}
+
+if cat /etc/passwd | cut -d: -f1 | grep -E "^$USER"; then
+  echo "hello" | write "$USER"
+else
+  echo "I could not find '${USER}'"
+  exit 1
+fi