I am facing an issue that I am not able to solve alone. I am running 2 node.js server instances on my linux server, but the one running on port 4000 is running well, but the one running on the port 6000 is not working. See below the example: Port 4000: Port 6000: I checked my port on my server
How to get output of function_1 into function_2 in shell scripting?
Suppose output of funtion_1: Question 1: Mark :5: Question 2: Mark :1: Question 3: Mark :3: Suppose function_2 needs to extract integer from function_1 output to calculate total mark. How to give output of function_1 to funtion_2? Answer Try this code: FILE_NAME=marks.txt function_1() { echo $(grep “Mar…
If there a way to make vsftpd allow one user to access root directory, while other users get redirected to their home directory? [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack …
Trouble redirecting an error in pipeline using Bash?
So I used this command to get all .conf files from /etc/. I want the output in total_size.txt and my errors in error.txt. My output looks good, but the errors won’t redirect to error.txt, they appear in my terminal: I don’t know what to do; I tried 2>> instead of 2> but it won’t wor…
How to do dynamic port forwarding using Ruby
How do I do SSH dynamic port forwarding on Ruby? I tried to use gems such as “net/ssh/socks” and “net/ssh/gateway”, but it looks like they are already outdated because I can’t even require them. All I need to do is run this shell command and receive the PID of this process. I also trie…
Searching a text file backwards from the end
I’m trying to find the string containing the substring in a text file by starting at the end. The file has tens of millions of lines. (The requirement is to read from End of the File. I cannot use sed/awk/grep etc) The below program does the job but it takes a long time. How can I make it run faster?
Why is Pip not working after upgrading Python to 3.8?
I was working on a 2D game using python 3.6.8 and pip3. Everything was working fine. Then i downloaded and installed python 3.8. Now, pip won’t work at all. These are the errors I am getting when running “pip3 install arcade”: PLEASE HELP, I would like to continue making my game. Answer The …
Retrieve logged on user name or id in the process running under root
I need to run from a privileged (root) application another application with current logged on user. getenv(“USER”) and getenv(“LOGNAME”) return “root” in the privileged application. Effective and current user ids are 0. I found something close to my needs, user-1000.slice, …
Unable to use grep for a command and excecute the shell script?
I have created a shell script to execute 5 commands from a file called elist.txt The shell script is as follows output: Answer You can do this too. People usually do not recommend to use eval at all. Regards!
How to access local variables in remote server using ssh [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 3 years ago. Improve this question I am trying to access my local variable in remote server. Which command should I use. Ex. cm…