#Ubunti pdf2csv install how to
#Ubunti pdf2csv install install
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We’ve shown you how to installed GCC on Ubuntu 20.04. Enter the number of the version you want to be used as a default and press Enter. You will be presented with a list of all installed GCC versions on your Ubuntu system. Press to keep the current choice, or type selection number: Later if you want to change the default version use the update-alternatives command: sudo update-alternatives -config gcc There are 3 choices for the alternative gcc (providing /usr/bin/gcc). Sudo update-alternatives -install /usr/bin/gcc gcc /usr/bin/gcc-10 100 -slave /usr/bin/g++ g++ /usr/bin/g++-10 -slave /usr/bin/gcov gcov /usr/bin/gcov-10 sudo update-alternatives -install /usr/bin/gcc gcc /usr/bin/gcc-9 90 -slave /usr/bin/g++ g++ /usr/bin/g++-9 -slave /usr/bin/gcov gcov /usr/bin/gcov-9 sudo update-alternatives -install /usr/bin/gcc gcc /usr/bin/gcc-8 80 -slave /usr/bin/g++ g++ /usr/bin/g++-8 -slave /usr/bin/gcov gcov /usr/bin/gcov-8 The default version is the one with the highest priority, in our case that is gcc-10. The commands below configures alternative for each version and associate a priority with it.

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Install the desired GCC and G++ versions by typing: sudo apt install gcc-8 g++-8 gcc-9 g++-9 gcc-10 g++-10 In the following example, we will install the latest three versions of GCC and G++.

The newer versions of the GCC compiler include new functions and optimization improvements.Īt the time of writing this article, the default Ubuntu repositories include several GCC versions, from 7.x.x to 10.x.x.

This section provides instructions about how to install and use multiple versions of GCC on Ubuntu 20.04. This creates a binary file named hello in the same directory where you run the command. Save the file and compile it into an executable: gcc hello.c -o hello Open your text editorĪnd create the following file: nano hello.c Compiling a Hello World Example #Ĭompiling a basic C or C++ program using GCC is pretty easy. GCC tools and libraries have been installed on your Ubuntu system. Warranty not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. This is free software see the source for copying conditions. Ubuntu 20.04 repositories provide GCC version 9.3.0: gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0Ĭopyright (C) 2019 Free Software Foundation, Inc. Verify that the GCC compiler is successfully installed by running the following command that prints the GCC version: gcc -version You may also want to install the manual pages about using GNU/Linux for development: sudo apt-get install manpages-dev The command installs a lot of packages, including gcc, g++ and make.

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: sudo apt update sudo apt install build-essential To install the Development Tools packages, run the following command as root or user with sudo privileges The default Ubuntu repositories contain a meta-package named “build-essential” that includes the GNU compiler collection, GNU debugger, and other development libraries and tools required for compiling software. This article explains how to install GCC on Ubuntu 20.04. A lot of open-source projects, including the Linux kernel and GNU tools, are compiled using GCC. The GNU Compiler Collection (GCC) is a collection of compilers and libraries for C, C++, Objective-C, Fortran, Ada, Go