Technology

Here’s a sample COBOL bubble sort program for linux. You can simply save the source (.cbl file) on your computer then compile and link the code to an executable with the following command. sudo cobc -free -x -o sort sort.cbl IDENTIFICATION DIVISION. PROGRAM-ID. SORT. DATA DIVISION. WORKING-STORAGE SECTION. 01 ARR OCCURS 5 TIMES PIC S9(2)….

To Install on Debian or Ubuntu just enter the following: sudo apt install open-cobol Create your program with .cbl suffix for example vars.cbl and compile with cobc -free -x -o vars vars.cbl Download the following example cbl file with this link IDENTIFICATION DIVISION. PROGRAM-ID. VARS. DATA DIVISION. WORKING-STORAGE SECTION. *> define a number with a…

top command displays Linux processes. It provides a dynamic real-time view of a running system i.e. actual process activity. By default, it displays the most CPU-intensive tasks running on the server and updates the list every five seconds. TOP hot keys t Displays summary information off and on m Displays memory information off and on…

df You can use df (display free disk space) to troubleshoot disk space issues. While running and maintaining your application on your machine, you might receive an error message signaling a lack of free space on the host. While disk space should be managed and optimized by a sysadmin, you can use df to figure out the existing space…

very simple installation # Download the Microsoft repository GPG keys wget https://packages.microsoft.com/config/debian/10/packages-microsoft-prod.deb # Register the Microsoft repository GPG keys sudo dpkg -i packages-microsoft-prod.deb # Update the list of products sudo apt update # Install PowerShell sudo apt install -y powershell # Start PowerShell pwsh Bash to Powershell command reference Bash PowerShell PowerShell Alias Note Cd…

The program nasm or “netwide assembler” is the first step. If you don’t know if it’s installed Just enter whereis nasm on a command prompt. If a single line “nasm’ is returned you’ll need to install the program. That is one simple command on most distributions. On Debian it is sudo apt install nasm, which…

The apt command utility is a successor to the earlier apt-get. The Debian package management infrastructure has been a feature of Debian since early on. At the heart of Debian package management is dpkg [1], a low-level tool used for installing and removing Debian .deb packages. The bigger and more comprehensive Advanced Package Tool (APT) [2] includes dpkg on the…