A simple COBOL template without line numbers.

Cobol.cbl

      *Format lines:
      * awk -i inplace '{printf("%04d00%s\n", NR, substr($0,7,120)) }' main.cbl
      *Compile and run:
      * cobc -x main.cbl && ./main
       IDENTIFICATION DIVISION.
        PROGRAM-ID. hello.
        AUTHOR. Julia.
        DATE-WRITTEN. 2024-04-19.
        DATE-COMPILED. 2024-04-19.
        REMARKS. This is a pretty good COBOL program.
      *
       ENVIRONMENT DIVISION.
        CONFIGURATION SECTION.
         SOURCE-COMPUTER. Ubuntu_Linux_x64_20_04_6_LTS.
         OBJECT-COMPUTER. Ubuntu_Linux_x64_20_04_6_LTS.
        INPUT-OUTPUT SECTION.
         FILE-CONTROL.
         I-O-CONTROL.
      *
       DATA DIVISION.
        FILE SECTION.
        WORKING-STORAGE SECTION.
      *Local storage is re-allocated each time a program is called.
        LOCAL-STORAGE SECTION.
        LINKAGE SECTION.
      *Report and screen section not available with IBM Cobol x86
      *Commented to avoid compilation warning
      * REPORT SECTION.
        SCREEN SECTION.
      *
       PROCEDURE DIVISION.
           DISPLAY "Hello, world!".
           STOP RUN.