first commit

install_rust.sh

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+# colors for outputs
+error_color="\033[1;31m"  # color for errors (bold red)
+note_color="\033[4;36m"   # color for notations (under-line cyan) 
+default_color="\033[m"    # default color (e.g., white)
+
+rustup_path=$(command -v rustup)
+if [[ $rustup_path = "" ]]; then
+    curl_path=$(command -v curl)
+    if [[ $curl_path = "" ]]; then
+        echo -e $note_color curl is required to install Rust through rustup $default_color
+    else
+        echo -e $note_color Installing Rust using rustup...$default_color
+        curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+    fi
+else
+    echo -e $note_color Rust has been installed using rustup, installation path is $rustup_path $default_color
+    echo -e "To update Rust, run: rustup update"
+fi