This configuration is a systemd service unit file for managing a TeamCity Build Agent. cat /etc/systemd/system/teamcity-agent.service After=network.target: This directive ensures that the service starts only after the network is available.…
You might be familiar with the /etc/resolv.conf file and configuring it by manually specifying the desired name servers for DNS resolution. However, the configuration within /etc/resolv.conf can also be dynamically…
AWK, a versatile text-processing tool, comes in different versions, such as mawk, gawk, and nawk. Let's specifically explore the distinctions between mawk and gawk. mawk: mawk is an older version…
In this post, we'll explore extending an ext4 partition, both with and without LVM, using "growpart".Initially, we'll focus on extending the LVM root partition (/), followed by extending a non-LVM…
POSIX, short for "Portable Operating System Interface," is a family of standards developed to ensure compatibility between various operating systems. This compatibility extends to user interfaces, allowing users to interact…
Let's explore the differences between a shell built-in and a shell keyword.Shell Built-in A built-in command is hardcoded into the shell, executing faster than external commands since there's no need…
To upgrade Ubuntu to the latest version, follow this sequential upgrade path: 14.04 ➔ 16.04 16.04 ➔ 18.04 18.04 ➔ 20.04NOTE: Based on my experience with OS upgrades, it's advisable…
Occasionally, when comparing dates (e.g., 2021-08-09) within a Bash script, unexpected errors may arise, such as 'value too great for base (error token is "08")' or 'value too great for…
Suppose we want to clone a GitHub repository using SSH authentication. In this case, we need to ensure that the corresponding private key is available on the server where we…
Symbolic links: -> A symbolic link (also known as a symlink) is a file that points to another file within the system.-> These links are analogous to shortcuts in Windows.->…