Factorial in C without conditionals, loops and arithmetic operators

How can I find the factorial of a number (from 1 to 10) in C, without using: loop statements like for, while, and do while; conditional operators like if and case; and arithmetic operators like +...

Where do PEAR packages normally get installed?

I am using a Debian squeeze server. I have installed PEAR using aptitude install php-pear. This created a directory /usr/share/php/PEAR. I installed some PEAR packages including Phing. I installed...

Combine Debian packages with libraries installed from source

On my linux (Ubuntu 11.04) development machine. I often need to install libraries from source. This always causes problems for me because the package manager doesn't consider packages installed...

How can I change the apt-get install directory

The default install directory of apt-get is /opt. Can I change it to another directory?

Uninstall MySQL completely from Ubuntu

I have trouble in uninstalling MySQL from Ubuntu. I used the following commands, it doesn't seem to help as I still find the MySQL folder in \etc directory 1.aptitude remove...

How can I set up autocompletion for Git commands?

I have Git (version 1.7.2.5) bash compeletion working on my Debian squeeze (6.0). Git was installed with aptitude and I am using standard debian's bash, which supports command line...

python-dev installation error: ImportError: No module named apt_pkg

I am Debian user, and I want to install python-dev, but when I run the code in the shell as a root: # aptitude install python-dev I get the following error: Traceback (most recent call last): ...

How do I give Jenkins more heap space when it's running as a daemon on Ubuntu?

My Jenkins jobs are running out of memory, giving java.lang.OutOfMemoryError messages in the build log. But I used the Ubuntu Package Manager, aptitude, or apt-get to install Jenkins, and I don't...

searching cpan.org from the commandline

I'm wondering if there's a feature to CPAN that allows the user to search all the modules available at CPAN.org. I could probably just write something that sends the get request and spits back the...

How to migrate virtualenv

I have a relatively big project that has many dependencies, and I would like to distribute this project around, but installing these dependencies where a bit of a pain, and takes a very long time...

Installing MariaDB: unmet dependencies, mariadb-server-10.0

ubuntu:~$ sudo apt-get install mariadb-server Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that...

How to access local apt repository behind https?

I have a couple of local apt repositories which are setup using reprepro. I want to make them available on the local network and I've got next to everything setup. However the repos are sitting...

unknown error: Chrome failed to start: exited abnormally (Driver info: chromedriver=2.8.undefined

When running selenium test from jenkins, I get this error: org.openqa.selenium.WebDriverException: unknown error: Chrome failed to start: exited abnormally (Driver info:...

fatal error: Eigen/Dense: No such file or directory

I have installed libeigen3-dev in order to compile programs using Eigen 3. when I include a file, such as Eigen/Dense I get this error when I try to run g++: [email protected]:~/Documents/prog$...

Clone private git repo with dockerfile

I have copied this code from what seems to be various working dockerfiles around, here is mine: FROM ubuntu MAINTAINER Luke Crooks "[email protected]" # Update aptitude with new repo RUN apt-get...

Warning vboxdrv kernel module is not loaded

Well I run this command aptitude purge ~o To delete all the Obsoletes files that aptitude show me big mistake I guess after that I update the system everything works fine but when I restart the...

Can't locate XML/LibXML.pm and cpan not found the c compiler to generate

I need LibXML in a Linux Machine and have the next error like other posts: Can't locate XML/LibXML.pm in @INC I saw the solution, but the problem that I have is that when try generate the...

Ansible Module Development: No module named ansible.runner?

I'm trying to write my first module in Ansible, which is essentially a wrapper around another module. Here is my module: #!/usr/bin/python import ansible.runner import sys def main(): ...

How to use lombok.Data annotation in a Spring Boot application?

I have used @Data annotation in my POJO Class but the getters and setters are not generated. IDE which I am using is sts(Spring Tool Suite) //User POJO Class import lombok.Data; @Data public...

'list' object has no attribute 'encode' when passing string to recipients list

I am having an issue with a Django app where I am attempting to perform send_mail using a Class Based View. Everytime I submit the form, I get this error: AttributeError at /contact/ 'list' object...

How to update-alternatives to Python 3 without breaking apt?

The other day I decided that I wanted the command python to default to firing up python3 instead of python2. So I did this: $ sudo update-alternatives --install /usr/bin/python python...

while(i != i) { } - is it possible to have an assignment that is always true

Recently I had an interview with a Software company where the following question was asked in the technical aptitude round: Declare i in such a way that the condition is always true : while(i !=...

No clone method in String Class

A technical aptitude question HashMap<String, String> map = new HashMap<String,String>(); String key1 = "key1"; map.put(key1, "value1"); String key2 = key1.clone(); map.put(key2, "value2"); What...

Ansible : APT module: how to get stdout?

Using the following answer stackoverflow.com/questions/34026875/ I'm trying to get the stdout from ansible apt module. Using this very simple test playbook: - hosts: localhost sudo: true ...

Spiral matrix diagonal element sum

Let n=5, then for matrix 1 2 3 4 5 16 17 18 19 6 15 24 25 20 7 14 23 22 21 8 13 12 11 10 9 then sum of diagonal elements is: =1+17+25+21+9+5+19+23+13 Sum for n=15? One way is to make the...

Installation of QGIS on Ubuntu 16: qgis-plugin-grass : Depends: grass760 but it is not installable

I'm trying to install the QGIS on my Ubuntu 16, but I'm not able to do it. First, I've tried to uninstall any QGIS version on my Ubuntu, such as described here and here After that, I tried to...

pkgProblemResolver error when running apt --fix-broken install

I am trying to run an apt upgrade, but it is requiring me to run apt --fix-broken install first. However, when I run that command, I get the following output: Reading package lists......

trying to install ros melodic on ubuntu 18.4, get broken packages error

i've tried to follow official instructions and run commands in console sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" >...

Run a repository in Docker

I am super new to Docker. I have a repository (https://github.com/hect1995/UBIMET_Challenge.git) I have developed in Mac that want to test it in a Ubuntu environment using Docker. I have created a...

Broken package installation using Ansible on debian 11 Bullseye

I woud like to install debian packages using Ansible 2.7.7 on Debian testing (yet) I try to execute this simple task: tasks: - name: install basic packages apt: name: ['mc', 'htop',...

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