I have a python program that will create and execute another python script in a new terminal. To do so, I’m using subprocess.Popen. I’m trying to get the PID of the new process using .pid. However, the value of this pid doesn’t seem to match the real pid of the newly created process (the two…
SSE: unaligned load and store that crosses page boundary
I read somewhere that before performing unaligned load or store next to page boundary (e.g. using _mm_loadu_si128 / _mm_storeu_si128 intrinsics), code should first check if whole vector (in this case 16 bytes) belongs to the same page, and switch to non-vector instructions if not. I understand that this is ne…
How to delete target folder created using scp by target user
I have a machines A B C. only Machine B have access to A & C. For machine A I have root access , machine B I have root access and for machine C I have User level access. 1.2.3.4 is the ip address assigned to machine B. When I am doing from machine A as scp -pr ./logs/ root@1.2.3.4:/common/tftpboot/
INSTALL HTS 2.3 for HTK 3.4.1 on Ubuntu 16.04 has error
I want to install HTS 2.3 but when I try to make all I get this error what is the problem? I installed libx11-dev already. Answer for resolve this two Error I specify the ARCH in ./configure like this: its worked for me. I do this step by step like this as Knud Larsen instruction:
How do I append or prepend to an attribute in an xml file using xmlstarlet or similar?
Did not see it in the docs. Here’s what I’m trying to do: I want to pre-append the prefix 1_ to t. Expected Output: Actual Output: Answer Try this: -v is for fixed values, -x is for xpath expressions.
How to access the Raspberry Pi Zero though SSH
I’m trying to remotely access my Raspberry Pi Zero using SSH. The raspberry’s OS is Raspbian Jessy Lite (so no desktop enviornment, only the command line). I connected the raspberry to the Internet using an Android phone with USB-tethering (the raspberry pi zero doesn’t have an ethernet port…
C Corrupted double-linked list after calling chdir
I’ve been working on some C code to provide functionality similar to the shell. So far it can run most commands like cat, ls, ls | grep …, etc. After writing code to implement the functions “cd”, “pwd”, “pushd” and “popd”, I have been testing it. If …
Raspberry Pi create user with one file permission
I know how to create a new user on the Pi with all the same privileges as pi from this: https://raspberrypi.stackexchange.com/questions/7133/how-to-change-pi-sudo-permissions But how do you create a user with just one file permission? I mean that I want to create a user Alice that can only edit / rm / scp / t…
Improve MySQL Performance
Info: MySQL Community 5.7.12 64 bits Programming Language: Python 3.5 mysqld.cnf: Mysqld.cnf result of “show variables” show variables Description: – I have 200 000 tasks. – I process these tasks with 500 threads, one per task, when a thread finishes, another task start. The point of t…
Logs and ELK stack on separate servers, how to display the logs?
I have logs on one server and ELK stack — ElasticSearch, Kibana, Logstash — on another. I want to display the logs, which are on the 1st server, in Kibana, which is on the 2nd one. How can I do that? Is logstash capable of retrieving logs over the internet from a remote server? Answer Your best be…