Questions tagged [linux]
Use this tag for code that specifically targets the Linux operating system (consider [unix] for more portable code that should run on other Unix-like systems).
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questions with no upvoted or accepted answers
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Single-threaded coroutine in C (Linux x86-64)
Background Story
I crafted a simple single-threaded coroutine in C, running on Linux x86-64.
Short Technical Explanation
1) Task
There are two types of tasks in this implementation.
Main task. This ...
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Google Drive migration Python script
I am looking to see if someone is willing to take the challenge in optimizing this noob python script.
The purpose of the script is to:
Check if Google Drive File Stream is installed
Check if Google ...
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Start a sub-process (with sudo) as head of new process group, kill it after timeout, get the output
This is a bit of a tricky one ... I am writing a test suite for a Python project - running on Linux. As part of the tests, I have to fire up various commands (shell commands, small CLI tools, Perl ...
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Processing large blocklists with GNU Parallel
This is an ongoing project that has undergone a major update to speed up list processing. Here is the homepage for anyone interested!
It processes lists defined in ...
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tar-backup V1.01 - backup script for Linux (full and differential backups)
The backup script itself. Make it executable and place it somewhere in your path:
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WSL LAMP stack script
The following code is aimed to establish a WSL based LAMP environment.
This is instead XAMPP or WAMPP based LAMP environment which doesn't allow Bash.
The script includes a cat heredocument called "...
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Linux performance using multi-threads (vs one thread) and ssh message
My server receives requests in one thread and responds in another. I am using thread pools of pthread-s for both receiving and sending. The performance is not that bad, however...
When I am doing the ...
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The Blacklist v2
This script gathers domains listed from sources in this JSON file and compiles them into one text file. Text files that have a similar key under the whitelists ...
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Bash script to mirror XWindow to remote SSH host
The source code within this question aims to provide a short-cut for mirroring a local XWindow (or session) to a remote host via SSH port forwarding, such as:
...
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Linux System Monitor
I made a system monitor on Linux which gives you all this information:
The full project can be found in my repo:
https://github.com/sandro4912/System-Monitor
In short it works as following:
I read ...
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Merging multiple awk commands while retaining functionality
Turned in a project a few days ago, and I needed a way to filter and format values off a file. I decided to go for a bash script since it seemed like a good option, and I came up with the following:
<...
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NRPE script for monitoring filesystems usage
Next script returns NRPE friendly output. It checks percentage usage of all local filesystems.
Desired output if everything is ok:
OK | /=56;;;; /boot=20;;;; /opt=40;;;; /var=60;;;; (and ...
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Cache line versus struct size testing
There's a mission-critical ring buffer in production on which I'm curious to test some optimizations. Specifically, I'm wondering how much of a performance difference struct size will make on issues ...
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Implementing binary-heap in x86-64 assembly
I'm trying to implement some of the simplest classical data-structures in x86-64 assembly on linux.
PRIMARY GOAL: Reduce memory consumption and increase performance (maybe using x86-64 architecture ...
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shared_mutex prototype implementation
Anyone feels to review a prototype C++11 shared_mutex implementation?
Not recursive, not protected and potentially dangerous if used incorrectly, but allegedly fast in case of many R/O less R/W ...
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TTY Menu With For X-less Linux
I am working on a vanilla Python menu system for the Linux console. The idea is to provide as much of the same functionality that a traditional DE provides - basic menus for accomplishing common tasks....
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Touchscreen Right Click
I have built a small script that provides touch screen right click context menu with long touch press in my ELAN touchscreen.
There is no need to remove your finger in order context menu to pop up.
...
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msysGit to Unix sockets
I wrote this small script to help porting msysGit sockets to WSL ("Bash for Windows"). I'm not a big Python programmer so any feedback would be well appreciated.
By the way, I made it a public Gist ...
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a C/Python X server interface extension package
The project is named winlin; it's a portmanteau of the words window and Linux.
I'm working on a CPython extension to interact with the X server and manipulate windows. I don't have a ton of ...
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Ansible to automate dev environment setup
This is a follow-up to Bash script to automate dev environment setup.
In that question I'd thrown together a (sloppy) shell script to automatically setup my development environment. One of the answers ...
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Ruby script for automating software install on a brand new Linux OS
I have some scripts to automate software install, apply some configurations and so on after installing a new system.
I used to have them as bash scripts but it was generally a poor idea.
I have ...
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Apache reverse proxy security configuration
Could someone share some light and check if this is okay for apache httpd security/good standards? I'm using apache httpd to call my Node.js app that is running with Express and also configuring SSL.
...
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Blocking serial port C library
I am planning to write a reasonably feature rich serial library but wanted to cut my teeth on something fairly basic. This serial library is fairly simple. It is a thin wrapper on the UNIX open, ...
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Code to backup the history file in Linux
How is the logic, efficiency and can it be improved?
This is a snippet from my .bashrc file; I just wrote it and I've tested it and it almost works. This was the ...
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Simple Go Linux daemon to send/receive gob-encoded data on a socket
I'm currently working on a linux daemon and would like some feedback. The program is a simple unix socket server that sends around gob encoded messages. I'm still getting the hang of concurrency in go ...
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Flask app to administrate network interfaces
I made a Flask app that consists of 3 pages.
Index: Indexes to the 2 pages
SubnetOverview: SSH's into the server and executes ifconfig, then returns the output to ...
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Script to report disk usage
I am trying to see how I can speed up the below script that reports disk usage.
The timed find command towards the end is the problematic line that I am trying to ...
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Shutdown or reboot system from LAN
I've written a simple web service which allows a user to shutdown or reboot a system from the LAN. Although written to be used on an RPI which lacks a power or reset button, it can be used on any ...
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Read file real time with while loop and trigger action on change
I want to read a file real time with a while loop that is being fed by the stdout of a process (inotifywait). The output could ...
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Optimize platform independent GetTickCount()
I used this method as a platform independent tick counter. Unfortunately, it consumes ~10 % cpu time in one of my methods. Is there a faster way to solve the issue?
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Python script to take a break
The idea may sound stupid, but this is what I got to know that you should take a break at regular intervals to not to strain your eyes.
So the idea is to take break of 2 minutes for every 20 minutes ...
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Ansible shell command status check
I have a task which checks the status of a process running on a Linux server using a shell. The task should report as failed when the status is NOT RUNNING. The following works but is there a better ...
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Simple header-only thread and mutex for both windows and linux in C
I wanted to get some thread support on windows with very simple headers for a library that I'm working on but it had to work on both Windows and Linux. Since C11 threads are not widely supported, this ...
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