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"))
One of the most common causes of UDP data gram lost on Linux is an undersized receive buffer on the Linux socket. How to enlarge Linux UDP buffer size? On Linux, you can change the UDP buffer size (e.g. to 26214400) by (as root): sysctl -w net.core.rmem_max=26214400 The default buffer size on Linux is 131071….
How to convert an integer into a string of many characters padded with 0s in bash. To do this in C: sprintf(buffer, “%08d”, n); which convert integer n to a 8-character string padded with leading 0s. How to padding a integer with 0s in bash? In bash, you can also use printf For the previous…
This is a tutorial on “how to delete all topics and posts from a user/spammer in myBB”. Please check out the answer. I use the Goodbye Spammer plugin for MyBB. First, install it after downloading the plugin form its homepage: Upload ./inc/plugins/goodbyespammer.php to ./inc/plugins/ Upload ./inc/languages/english/goodbyespammer.lang.php to ./inc/languages/english/ Go to ACP > Plugins > Activate…
Hyperledger Fabric is a consortium blockchain system. It’s performance is relatively good and its modular architecture enables it to be usable in many scenarios. Hyperledger Fabric itself has rich documents and samples of test networks. For beginners, deploying a new network for trying and testing still consumes quite some time. In this post, we will…
For my case, I need to bypass one intermediate server so that I can connect to the remote server with vnc. For example, there are two servers (s1, s2) except my local PC and I have to login to s1 so that I can login s2 from my local PC. However, now, I need to…
ssh, scp, sftp and vnc are frequently used tools (both servers and clients) on Linux. We may want to remote control a Linux box from Windows such as when we make demostration in a meeting while our work are done on the Linux box. There are lots open source SSH, SCP, SFTP and VNC clients for…