Learn which process sets the $USER and $USERNAME variables.
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Baeldung Author
Sidrah Abdullah
I'm a freelance Technical Content Writer with about 2 years of experience in writing about Linux, BASH, Git and DevOps.
Here's what I've written (so far):
Baeldung on Linux
- >All
- Scripting (18)
- Administration (8)
- Text Processing (5)
- Files (5)
- File Editing (5)
- Installation (4)
- Processes (3)
- File Searching (3)
- Networking (2)
- File Viewing (2)
- File Conversion (2)
- Web (1)
- Package Management (1)
Why the Value of a Variable Modified in a while Loop Is Not Remembered Outside
Filed under Scripting
Learn the reasons behind the behavior of control variables inside Bash while loops and how to ensure changes to these variables persist outside the loop.
Executing Command Line Code From C++ in Linux
Learn ways to call shell and system commands from a C++ program in Linux.
Using grep With Multiple AND Conditions in Linux
Filed under Scripting, Text Processing
Learn ways to construct grep commands that involve multiple AND conditions for filtering and matching.
What’s the Difference Between find . and find . -print
Filed under File Searching
Explore difference between find . and find . -print including their historical context and subtle differences
Comment Multiple Lines in the Nano Editor
Filed under File Editing
Learn ways to comment out multiple lines at once via the Nano editor in Linux.
What Are Linux Distributions?
Filed under Administration
Learn what a Linux distribution is, what it comprises, and discover some differences between distributions.
How to Search the Whole Manual Pages
Filed under Administration
Learn how to search Linux man manual pages for specific terms.
How to Convert PDF to PostScript
Filed under File Conversion
Learn ways to convert a PDF file to the PostScript format in Linux.
Baeldung on Computer Science
- >All
- Latex (2)
- Artificial Intelligence (1)
Detecting Syllables in a Word
Filed under Artificial Intelligence
Explore several approaches to finding syllables in a word, which is an important task in natural language processing (NLP).
Write Pseudo Code in LaTeX
Filed under Latex
Explore three approaches to writing pseudocode in LaTeX.
How to Use a Two-Columns Layout in LaTeX?
Filed under Latex
Explore how to use a two-column layout in LaTeX using the multicol and minipage packages.
Baeldung on Ops
- >All
- Git (4)
- Deployment Tools (1)
Using a Package Manager in GitHub Actions
Filed under Deployment Tools, Git
Learn how to safely and wisely use a package manager within GitHub Actions.
Using GitHub Actions to Create .env File in the Workflow
Filed under Git
Learn how to use and create .env files in GitHub Actions without compromising security or flexibility.
Adding Git Credentials in VS Code
Filed under Git
Learn ways to add and manage secure Git access for Visual Studio Code (VSCode) via credentials.
The Differences Between git lfs fetch, git lfs fetch –all, and git lfs pull
Filed under Git
Explore the differences between the git lfs fetch, git lfs fetch –all, and git lfs pull commands.
Baeldung on SQL
- >All
- SQL Queries (3)
- SQL Functions (2)
- SQL Views (1)
- Database Concepts (1)
- Database Access (1)
Understanding SQL RANK() vs. ROW_NUMBER()
Filed under SQL Functions
Learn about the difference between RANK() and ROW_NUMBER() in SQL.
How Do I Connect to a SQL Database in Python?
Filed under Database Access
Learn how to connect to a MySQL database from Python.
SQL Query for Calculating a Rolling 7-Day Average
Filed under SQL Queries, SQL Views
Discuss a general approach to calculating a 7-day rolling average, including indexed views in MSSQL Server, materialized views in MySQL, and materialized views with refresh in PostgreSQL.
What Is the Difference Between ER Diagrams and Database Schema?
Filed under Database Concepts
Explore the differences between ER diagrams and database schema.
Calculating Running Totals in SQL
Filed under SQL Queries
Learn several methods for calculating running totals in SQL
How to Retrieve Column Names From a Table in SQL
Filed under SQL Queries
Learn how to extract the names of table columns via SQL.
How to Round Numbers to Two Decimal Places in SQL
Filed under SQL Functions
Learn ways to round numbers in an SQL query.