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Removing empty lines from files is a common task in Linux Bash scripting. Empty lines can clutter up files and make them harder to read or process. Thankfully, the versatile sed command comes to the rescue. With its powerful text manipulation capabilities, sed provides an efficient way to delete empty...
Dimitrije Stamenic
Comma-Separated Values (CSV) is a widely used file format for storing data in tabular form, where each row represents a record and each column represents a field within that record. The values are separated by a comma, which is why the format is called CSV. CSV is a popular data...
Comparing numbers is a fundamental operation in many programming/scripting languages, including Bash. It allows for making decisions based on numerical values and is essential for writing scripts that can process data and perform tasks based on conditions. In Bash, comparing numbers is done using comparison operators, such as -eq,...
Grep is a powerful tool in the Unix world that allows you to search for specific text within files or even directories. It is widely used for log analysis, code review, and many other tasks that require searching for text. In Bash, you can use grep to search for specific...
Getting the source directory of a Bash script is an important topic for anyone who is looking to develop robust and reliable Bash scripts. Understanding how to retrieve the source directory of a script can make it easier to manage and organize your code. Whether you're a beginner or an...
In Bash scripting, it's often necessary to check if a string contains a specific substring. This can be useful for validating user input, processing text data, or executing certain actions based on the presence or absence of a certain pattern. The process of checking if a string contains a substring...
It is important to check for the existence of directories and files in Bash scripts for several reasons. Firstly, it allows the script to handle situations where the expected directories or files do not exist. This can prevent errors and unexpected behavior in the script - if a script expects...
In bash, the [ and [[ operators are used for comparison and testing. The [ operator is an alias for the test command, which is used to check the properties of files or to compare strings or integers. The [[ operator is a more advanced version of the test command. It allows you to...
In Bash, parameter expansion is a feature that allows you to manipulate the value of a variable or to extract part of its value using a special syntax. It is often used to modify the value of a variable or to extract information from it. Parameter expansion uses a syntax...
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