417 questions
I would like to develop a system using OpenCV running on Raspberry Pi 3 Model B, but I am not sure how to set up the development environment.I'm not sure if it's easier to program with Raspberry Pi or...
If you are accessing files from multiple threads in C language, please tell me which functions to lock.We have created the following programs:·Thread (1) is written to the file.·Thread (2) is read aga...
When I copied the entire folder to another server using rsync, there was a difference in size and I am troubled.If anyone knows how to solve this problem, I would like to ask you to teach me a questio...
There are three Linux servers, and I would like to transfer files from the source server to the destination server with one server in between.ネットワーク Due to network configuration, the server must be pl...
There is a list like this.This list is entered from standard input.-062656-072654-082755-1001-1101-1201-130152-1452Then use the date command to get the time and store it in the variable.Then search fo...
Ruby's scripts are struggling with the phenomenon of keeping memory if it ever gets huge.require 'objspace'array=[ ](1..20).each_with_index do|i| array<<'a'*1000000 puts memsize:#{ObjectSpace.me...
When I looked at the difference between Docker and VM, I realized that while VM works with OS, Docker containers can use the kernel of the host OS, and other libraries and apps are included in the Doc...
environmentVirtual Environment: VirtualBox 6.0.4r128413Host OS: macOS X 10.9.5Guest OS:Manjaro-xfce-18.2.0uname —4.19.16-1-MANJAROwhat someone didAfter installing manjaro, the following is what I did ...
In what language are the Nginx and Apache configuration files written?I recently saw an example of a Nginx configuration file rewriting using a variable starting with $.Perl or PHP?This is because I w...
I am having trouble dividing php_error_log using cronolog.By writing httpd.conf as shown below, ErrorLog and CustomLog have been successfully split by cronolog-rw-r --r--1 root root 370592 January 26 ...
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