From 64c559f63935424cab1e17f91483584e3b2e9ff9 Mon Sep 17 00:00:00 2001
From: aaron <schmocker@puzzle.ch>
Date: Thu, 27 Oct 2022 17:16:08 +0200
Subject: [PATCH] add example

---
 example.sh               | 43 ++++++++++++++++++++++++++++++++++++++++
 script.sh => template.sh |  0
 2 files changed, 43 insertions(+)
 create mode 100755 example.sh
 rename script.sh => template.sh (100%)

diff --git a/example.sh b/example.sh
new file mode 100755
index 0000000..4fc2a8a
--- /dev/null
+++ b/example.sh
@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+set -o errexit
+set -o nounset
+set -o pipefail
+
+if [[ "${1-}" =~ ^-*h(elp)?$ ]]; then
+    echo 'Usage: ./script.sh arg-one arg-two
+This is an awesome bash script to make your life better.
+'
+    exit
+fi
+
+if [[ "${TRACE-0}" == "1" ]]; then
+    set -o xtrace
+fi
+
+cd "$(dirname "$0")"
+
+main() {
+  # no connection
+  state=0
+
+  # test each interfaces for connectivity
+  for iface in $(ls /sys/class/net/ | grep -v lo); do
+    if [[ $(cat /sys/class/net/$iface/carrier 2>/dev/null) = 1 ]]; then
+      echo -e "$iface \e[32mconnected\e[0m"
+      state=1
+    else
+      echo -e "$iface \e[31mno_connection\e[0m"
+    fi
+  done
+
+  # check summary
+  if [[ $state -eq 0 ]]; then
+    echo -e " \n\e[31mno connection\e[0m" > /dev/stderr;
+    exit -1;
+  else
+    echo -e "\n\e[32mconnected\e[0m" > /dev/stdout;
+    exit 0;
+  fi
+}
+
+main "[email protected]"
diff --git a/script.sh b/template.sh
similarity index 100%
rename from script.sh
rename to template.sh