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Tag: linux

Installing node.js 6.3.1 – no such file or directory

I’m trying to install the latest version of node on Elementary OS based on Ubuntu 14.04. I’ve purged all other version of node. I run this command as explained in a few places on the web: Then I get this output: Any ideas? Answer You want to use https://deb.nodesource.com/setup_6.x as the URL and …

Understanding glibc malloc trimming

Some program that I am currently working on consumes much more memory than I think it should. So I am trying to understand how glibc malloc trimming works. I wrote the following test: Test output (without calling malloc_trim): Even though almost all memory was released, this test code consumes much more resid…

How does ${path} work, in this tutorial

I’m sure this is one of the dumbest problems asked on this site, but I am very new to linux, and a little out of my depths. I’m working off of this tutorial here and am stuck on the “add the path” and verify steps. For this one the tutorial told me to use this: I have already defined D…

Building C with automake under OS X and Linux

Currently I’m writing a RPC system for delay tolerant networks based on the Serval project from Australia (GitHub) in C. Mainly I’m developing on macOS El Capitan and everything works fine. But it is somewhat important that my code runs on macOS and Linux. But Linux makes trouble. I choose automak…

What does git -H do? [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 …

Get a radius of a circle in bash shell

I need to write a script to find radius of a circle and then find the area while the circumference is given The formula is: RADIUS=CIRCUMFERENCE/(2 * PI) The problem is I cant make this formula work because bash doesn’t accept decimal division I read a lot of answers there but still can’t get what…

Arch Linux, Docker “No space left on device.”

All of the similar questions I see are resolved by cleaning up the images or containers or orphaned volumes but I am not having any of those problems. I even completely deleted /var/lib/docker and still nothing. Relevant output: docker info One thing that makes my issue a little different (Where I think the r…

How to export daily disk space usage?

I am new to scripting. Is it possible to export the disk space usage of a linux server to an excel shell(.csv) sheet daily ? If so, what will be the scripting for that? Answer Use awk to parse df result: Assuming ; is your csv separator, then: gives: In a full script with the date: