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docs/Linux-Commands/System/038-the-hostname-command.md

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+# The `hostname` command
+
+`hostname`  is used to display the system's DNS name, and to display or set its hostname or NIS domain name.
+### Syntax:
+
+```
+hostname [-a|--alias] [-d|--domain] [-f|--fqdn|--long] [-A|--all-fqdns] [-i|--ip-address] [-I|--all-ip-addresses] [-s|--short] [-y|--yp|--nis]
+```
+
+### Examples:
+
+1. ``` hostname -a, hostname --alias ```
+    Display the alias name of the host (if used). This option is deprecated and should not be used anymore.
+
+2. ```hostname -s, hostname --short```
+    Display the short host name. This is the host name cut at the first dot.
+
+3.  ```hostname -V, hostname --version```
+    Print version information on standard output and exit successfully.
+
+
+### Help Command
+Run below command to view the complete guide to `hostname` command.
+```
+man hostname
+```