Install gcc, gfortran and clang on linux

images/linux/scripts/installers/gfortran.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+################################################################################
+##  File:  gfortran.sh
+##  Desc:  Installs GNU Fortran
+################################################################################
+
+# Source the helpers for use with the script
+source $HELPER_SCRIPTS/document.sh
+
+function InstallFortran {
+    version=$1
+
+    echo "Installing $version..."
+    apt-get install $version -y
+
+    # Run tests to determine that the software installed as expected
+    echo "Testing to make sure that script performed as expected, and basic scenarios work"
+    if ! command -v $version; then
+        echo "$version was not installed"
+        exit 1
+    fi
+
+    # Document what was added to the image
+    echo "Documenting $version..."
+    DocumentInstalledItem "GNU Fortran $($version --version | head -n 1 | cut -d ' ' -f 5)"
+}
+
+# Install GNU Fortran compiler
+apt-get update -y
+
+versions=(
+    "gfortran-8"
+    "gfortran-9"
+)
+
+for version in ${versions[*]}
+do
+    InstallFortran $version
+done