How to get an environment variable in Go?
In Go lang, how to get an environment variable?
To get an environment variable (e.g. “VAR”) in GO:
import "os"
import "fmt"
fmt.Println("VAR:", os.Getenv("VAR"))
In Go lang, how to get an environment variable?
To get an environment variable (e.g. “VAR”) in GO:
import "os"
import "fmt"
fmt.Println("VAR:", os.Getenv("VAR"))
How to convert a piece of HTML code to plain text without leading and ending spaces in PHP? For example, I would like to convert <div> <b>hello</b> world</div> to a string hello world You may use this piece of code in PHP to strip HTML tags, remove leading and ending spaces and convert special characters…
IPv6 is enabled by default on most Linux distros. However, IPv6 is not used for some situations for most of time and it may cause troubles and requires effort to protect the network and ensure the security. This post introduces how to disable IPv6 support on Linux (newer modern Kernel versions). First, add these lines…
Differences beween DDL (Data Definition Language) and DML (Data Manipulation Language) Data Definition Language (DDL) statements are used to define the database structure or schema. Data Manipulation Language (DML) statements are used for managing data within schema objects. References:http://www.orafaq.com/faq/what_are_the_difference_between_ddl_dml_and_dcl_commands Read more: What are the DDL and DML of Shark (Spark SQL)? HTML form generation from…
ssh client can use many authentication methods like password, keys. On a server, I set password-less log in with private/public key. Now, I want to try whether the new password is set correctly by log on using ssh. By default, the key-based authentication method is used again. How to force ssh client to authenticate using…
This post is a tutorial for new users to set up git and clone and use the first repository. This post introduces how to start using git for new users. This post does not introduce details of how to use git commands. Please refer to the git manual or other tutorials for how to commit,…
How to install driver for TP-LINK T2U wifi adapter on Linux? I am using Fedora Linux 22. The kernel module for the driver for TP-LINK T2U is “mt7650u_sta”. TP-LINK and mediatek provide drivers (mediatek one is for 7610u). But neither work for Fedora 22 AFAIK. This piece of modified driver work for me on Fedora…