add tcp-connection-state-counter.sh

unei66 · Mar 14, 2014 · 0546f09 · 0546f09
1 parent e41ec4e
commit 0546f09
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/tcp-connection-state-counter.sh b/tcp-connection-state-counter.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+# @Function
+# show count of tcp connection stat.
+#
+# @Usage
+#   $ ./tcp-connection-state-counter.sh
+#
+# @author Jerry Lee
+
+netstat -tn | awk 'NR > 2 {
+    s[$NF]++ 
+}
+
+END {
+    for(v in s) {
+        print v "\t" s[v]
+    }
+}' | sort -nr -k2,2