5.1. linux#

5.1.36. Reset GNOME Terminal Hotkeys#

dconf reset -f /org/gnome/terminal/legacy/keybindings/

5.1.37. Manging Multiple Compiler Versions#

for personal machines

For example, if you need multiple versions of gcc/g++ on a single machine running Ubuntu 22.04

First install with sudo apt-get

sudo apt-get install gcc-11 gcc-10 gcc-9 g++-11 g++-10 g++-9 -y

Use the updalternativesate to create list of multiple gcc and g++ compiler alternatives
Larger number = higher priority
- here, gcc and g++ 11 is default

sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 0
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-9 0
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 1
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-10 1
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-11 2
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-11 2

Check the available c and c++ compilers list on your system and select desired version by entering relevant selection number:

sudo update-alternatives --config gcc
sudo update-alternatives --config g++

Sanity check

gcc --version
g++ --version