From: Stefan Huber <shuber@sthu.org>
Date: Wed, 12 Jun 2019 07:56:02 +0000 (+0200)
Subject: Add ifonline
X-Git-Url: https://git.sthu.org/?a=commitdiff_plain;h=ffcf6659b79f223bb7749dd9354e8add6e1bb4b1;p=shutils.git

Add ifonline
---

diff --git a/ifonline b/ifonline
new file mode 100755
index 0000000..5a26215
--- /dev/null
+++ b/ifonline
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+usage() {
+	cat << EOF
+Usage:
+ $0 [OPTIONS]
+ $0 -h
+ $0 -c "echo 'online'"
+
+OPTIONS:
+  -h            Show this text
+  -c CMD        Command to execute if online
+EOF
+}
+
+CMD=""
+
+while getopts "hc:" OPTION; do
+    
+	case "$OPTION" in
+		h)
+			usage
+			exit
+			;;
+		c)
+			CMD=$OPTARG
+			;;
+	esac
+done
+
+if [ -z "$CMD" ]; then
+    echo "No command given."
+    usage
+    exit 2
+fi
+
+if ping -c1 8.8.8.8 2>&1 >/dev/null; then
+    $CMD
+fi