installation

sudo apt-get update
sudo apt-get install gnucobol4

Bonjour le monde en cobol

       IDENTIFICATION DIVISION.
       PROGRAM-ID. HELLO.
       ENVIRONMENT DIVISION.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01 WS-MESSAGE PIC X(13) VALUE "Hello, World!".
       PROCEDURE DIVISION.
           DISPLAY WS-MESSAGE.
           STOP RUN.

cobc -x -o hello hello.cob