added net scripts

script/host/net/printOwnShortHostnameFromHostsFile.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# Select just lines containing 'inet'.
+# 1.) Remove every indenting.
+# 2.) Remove 'inet '.
+# 3.) Remove everything after a '/' (including the /).
+# Search each IP of the IPv4-list in file '/etc/hosts' 
+# Select just lines containing 'managedHost'.
+# 1.) Remove everything after a '#' (including the #).
+# 2.) Remove every indenting.
+# 3.) Remove blanks (spaces or tabs) at the end of lines.
+# 4.) Replace blanks (spaces or tabs) with one ';' between the values.
+# 5.) Delete empty lines.
+# Then cut the second field
+# Then cut the first field to get the short hostname
+ip -4 addr \
+    | grep 'inet' \
+    | sed -e 's/^[[:blank:]]*//' \
+        -e 's/inet //' \
+        -e 's/\/.*//' \
+    | xargs -i grep {} /etc/hosts \
+    | grep 'managedHost' \
+    | sed -e 's/#.*//' \
+        -e 's/^[[:blank:]]*//' \
+        -e 's/[[:blank:]]*$//' \
+        -e 's/\s\+/;/g' \
+        -e '/^$/d' \
+    | cut -d';' -f2 \
+    | cut -d'.' -f1
+