FAQ Database Discussion Community


Code::Blocks - Linux - prints “Hello World” even though it isn't in the “main.cpp” file

c++,linux,codeblocks,archlinux
I have recently started a few projects to help me learn C++, I am creating a program that allows the user to enter a grade score /100, the code is as follows: #include <iostream> #include <cstdio> #include <cstdlib> using namespace std; int main (gradeScore) { int gradeScore cout << "Enter...

If getaddrinfo fails once it fails forever (even after network is ready)

c,linux,networking,archlinux,getaddrinfo
I am writing a C application which is run as a systemd service on boot (distro: Arch Linux) and which shall connect to a server. Because the application is run on boot it eventually happens that the network connection is not yet established. This naturally leads to a failure of...

migrating from postgresql 9.3 to 9.4, postgis

linux,postgresql,postgis,archlinux
I upgraded from postgresql 9.3 to 9.4 and now I want to migrate my data. So this is what I tried to do. First I ran the old postgresql like so /opt/pgsql-9.3/bin/pg_ctl -D /var/lib/postgres/data/ start Then, I tried to dump the old database to a file: /opt/pgsql-9.3/bin/pg_dumpall >> old_backup.sql And...

Read a randomly generated number?

bash,archlinux
Im trying to use the read command to read a randomly generated number and then reuse it. Im using, read "$RANDOM" randomnumber echo "$randomnumber" When I run it I get, read: 'numbers': not a valid identifier and the echo spits out $randomnumber...

how to enable audit framework in arch linux 3.12 kernel?

linux,linux-kernel,monitoring,audit,archlinux
I want to use audit framework on my latest arch linux, but running sudo auditctl -w /home/ in console gives me Error - audit support not in kernel Cannot open netlink audit socket I tried to enable of course audit via kernel boot params setting audit flag: GRUB_CMDLINE_LINUX_DEFAULT="quiet audit=1" but...

can't switch to different target (runlevel) from rescue shell

linux,archlinux,systemd
I had a working Arch Linux install, at some point it crashed, I had to reboot it, now it will not boot past: Starting Switch Root... Welcome to Arch Linux! Nothing is logged. With systemd.unit=rescue.target appended to the kernel command line it boots into a rescue shell. Then, I try...

Automatic building and installing Packages from AUR for Arch Linux inside Docker with yaourt and >makepkg-4.2.0

docker,archlinux
I'm using Docker and Arch Linux inside the Docker-Container. Introducing makepkg-4.2.0 my Installation Command with yaourt were broken like described here: https://github.com/archlinuxfr/yaourt/issues/67 The Problem is, that yaourt should be run as non-root user. But as yaourt wants also to install the Package in every Case, after it has built it,...

Where is the LANGUAGE environment variable set?

linux,environment-variables,locale,configuration-files,archlinux
I'm using zsh on my archlinux. My LANGUAGE environment variable was set to fr but I wanted to set it back to en_US.UTF-8 so I did it in my ~/.zshrc file. But was it the best place to set it? Isn't it dirty? This works but only for my user's...

How to get “python http.server” to work in Arch Linux

python,linux,python-3.x,archlinux
When I enter "python http.server" I expect to get the simple webserver, instead I get: $ python http.server python: can't open file 'http.server': [Errno 2] No such file or directory While on my server, also an Arch box (has been running for some time so unclear what packages are installed)...

GLib.Error: gst_parse_error: no element “zbar”

python,gstreamer,archlinux,python-gstreamer
from gi.repository import GdkX11, GstVideo p = 'v4l2src ! tee name=t ! queue ! videoconvert ! zbar ! fakesink t. ! queue ! videoconvert ! xvimagesink' self.a = a = Gst.parse_launch(p) Error: self.a = a = Gst.parse_launch(p) GLib.Error: gst_parse_error: no element "zbar" (1) Following the answer to python gstreamer script...

Can't delete nignx's temporary files without sudo

nginx,archlinux
I've installed nginx the regular way on Arch Linux. Anytime my website (ie nginx) creates temporary files, it's created by the http:http user and they have 755 permission. I need to clear the cache time to time and I am logged as a regular user. That means anytime I need...

No default route after returning from PPP connection

routing,archlinux,pppd
I'm here on a Arch Linux box with a working ETH0 (fixed IP) and PPP connection via 3G USB stick (ttyUSB0). After rebooting, ETH0 works fine. Establishing a PPP connection works fine, too. But after using 'poff' to cancel the PPP connection, I don't get a default route again. I...

Where to go from Sourcery CodeBench **LITE** [closed]

linux,arm,cross-compiling,archlinux
I have been using Sourcery CodeBench LITE for ARM targets until today when I realized that it is no longer available for ARM targets. Instead Mentor graphics wants us to pay the nonfree Sourcery CodeBench. I wonder. Isn't Sourcery CodeBench LITE derived from GNU GCC? Then why don't they make...

wifi issue with archl linux

linux,wifi,driver,archlinux
I am facing a problem with the wifi in arch linux, have looked in the wiki and found it's supported https://wiki.archlinux.org/index.php/Wireless_network_configuration#rtl8723be but couldn't fiigure out why it is not working tried this driver https://github.com/lwfinger/rtlwifi_new got a prolem when running the make cmd make -C /lib/modules/3.14.42-1-lts/build M=/home/ebadawy/rtlwifi_new-master modules make[1]: Entering directory...

How to enable HTML5 videos in qutebrowser?

html5,browser,plugins,archlinux
qutebrowser is not that popular, so I couldn't google an answer to my question, I want to be able to watch youtube etc... Please help this is the only thing stopping me from using a great browser