How to change the hostname in Ubuntu
How to change hostname in Ubuntu. There are three options: temporary until the first restart and permanent by changing the hostname file or using command hostnamectl
How to change Tomcat default port
How to change Tomcat default port 8080 to any other port. Three steps: locate server.xml file, edit and restart the Tomcat service.
Maven local repository location
Maven local repository default location for Linux and Windows and how to change the location.
Tomcat default administrator password
How to activate the default tomcat manager application administrator password. This setting is for Tomcat 7 and newer.
How to check if file exists in Golang
How to check if a file exists in Golang using os.Stat method. A FileInfo describing the named file or an error is returned.
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