SysAdmin

This article thoroughly explores cron expression syntax, including allowed fields, values, and special characters.

This tutorial lists the steps that will help you fix the E: Could not get lock /var/lib/dpkg/lock error you may get on Ubuntu while trying to install an application. In some cases waiting helps, but in other, you may have to try one of the methods in this guide.

FTP stands for File Transfer Protocol. It is similar to HTTP (HyperText Transfer Protocol), in that it specifies a language for transferring data over a network. FTP is unencrypted by default, so by itself, it’s not a good choice for secure transmissions. This guide will help you install and configure an FTP server (VSFTPD) on Ubuntu 18.04.

This guide shows how to use the cp and rsync commands to copy files and directories in Linux.

Adding a binary to PATH ensures that the binary is executed from the command line, without the need to specify its path. This article shows you how to add the Python binary to PATH on Windows, Linux, and macOS.

A .tar.gz archive is a compressed file that involves multiple files compiled into a single archive and compressed using gzip compression. Extracting these files in Linux can be complex. Learn how to use different third-party tools to get them.

User creation and management is an important aspect of database security. Learn how to create various user types in PostgreSQL in this guide.

This article explains how to change the current working directory in Linux using the cd command.

The gunzip command is used to decompress files. This command restores the compressed file to its original state. Read this tutorial to learn all about the gunzip command in Linux.

Cron scheduler is a popular system administration tool on macOS and other UNIX-like systems. This article shows you how to set up a Cron job on Mac to schedule automatic execution of maintenance, backup, and other scripts.