diff --git a/index_test b/index_test
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+++ b/index_test
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+--- # Programming language
+  name: "test"
+  author: "zeus"
+  intro: "netstat is available on all Unix-like Operating Systems and also available on Windows OS as well. It is very useful in terms of network troubleshooting and performance measurement. netstat is one of the most basic network service debugging tools, telling you what ports are open and whether any programs are listening on ports.
+
+This tool is very important and much useful for Linux network administrators as well as system administrators to monitor and troubleshoot their network-related problems and determine network traffic performance. This article shows usages of netstat command with their examples which may be useful in daily operation.
+"
+  0_netstat:
+    display_name: "netstat"
+    swarmlabservice: "os2"
+    info:
+      file: "0_netstat/info"
+    code:
+      lang: "bash"
+      exec: "/bin/bash"
+      file: "0_netstat/code"
+      options: "options"
+      mimetype: "bash"
+      output:
+        log: "ascii"
+        mimetype: "bash"
+    challenge:
+      question: "0_netstat/q-info"
+      codehelp: "0_netstat/codehelp"
+      codeanswer: "0_netstat/codeanswer"
+      mimetype: "bash"
+      points: "1" # ELO
+      output:
+        log: "ascii"
diff --git a/index_test.yml b/index_test.yml
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--- /dev/null
+++ b/index_test.yml
@@ -0,0 +1,26 @@
+--- # Programming language
+  name: "test"
+  author: "zeus"
+  intro: "intro"
+  0_netstat:
+    display_name: "netstat"
+    swarmlabservice: "os2"
+    info:
+      file: "0_netstat/info"
+    code:
+      lang: "bash"
+      exec: "/bin/bash"
+      file: "0_netstat/code"
+      options: ""
+      mimetype: "bash"
+      output:
+        log: "ascii"
+        mimetype: "bash"
+    challenge:
+      question: "0_netstat/q-info"
+      codehelp: "0_netstat/codehelp"
+      codeanswer: "0_netstat/codeanswer"
+      mimetype: "bash"
+      points: "1" # ELO
+      output:
+        log: "ascii"
diff --git a/test/0_netstat/code b/test/0_netstat/code
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index 0000000..309a156
--- /dev/null
+++ b/test/0_netstat/code
@@ -0,0 +1 @@
+netstat -antlupe
\ No newline at end of file
diff --git a/test/0_netstat/codeanswer b/test/0_netstat/codeanswer
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index 0000000..e69de29
diff --git a/test/0_netstat/codehelp b/test/0_netstat/codehelp
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index 0000000..e69de29
diff --git a/test/0_netstat/info b/test/0_netstat/info
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--- /dev/null
+++ b/test/0_netstat/info
@@ -0,0 +1 @@
+Listing all the LISTENING Ports of TCP and UDP connections
\ No newline at end of file
diff --git a/test/0_netstat/q-info b/test/0_netstat/q-info
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index 0000000..e69de29
diff --git a/test/intro b/test/intro
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--- /dev/null
+++ b/test/intro
@@ -0,0 +1,5 @@
+
+
+netstat is available on all Unix-like Operating Systems and also available on Windows OS as well. It is very useful in terms of network troubleshooting and performance measurement. netstat is one of the most basic network service debugging tools, telling you what ports are open and whether any programs are listening on ports.
+
+This tool is very important and much useful for Linux network administrators as well as system administrators to monitor and troubleshoot their network-related problems and determine network traffic performance. This article shows usages of netstat command with their examples which may be useful in daily operation.
diff --git a/test_LLO.zip b/test_LLO.zip
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