From f12ef3fd3851bb69aa2fbadd713ccff3298b7fab Mon Sep 17 00:00:00 2001
From: mo khan <mo.khan@gmail.com>
Date: Mon, 14 Oct 2019 10:35:45 -0600
Subject: Create script for detecting duplicate login names

---
 bin/duplicate-login-names | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100755 bin/duplicate-login-names

(limited to 'bin')

diff --git a/bin/duplicate-login-names b/bin/duplicate-login-names
new file mode 100755
index 0000000..af575f3
--- /dev/null
+++ b/bin/duplicate-login-names
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+cd "$(dirname "$0")/.."
+FILE=${1:-'/etc/passwd'}
+
+DUPLICATES=$(grep -v -E '^#' "$FILE" | awk -F: '{ print $1 }' | sort | uniq -d)
+echo $DUPLICATES
+
+if [ -z "$DUPLICATES" ]; then
+  exit 0
+else
+  exit 1
+fi
-- 
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