grep is a powerful tool for searching for a pattern in files. You can search in a single file, all directory files, or recursively through all files in a directory. A use case to search through all files in a directory is finding information in application log files. You may …

grep allows you to search for a pattern in a file’s content. This tool searches even through large files, like application logs. You may also search recursively for a pattern in files of a directory and related subdirectories. This tutorial shows you how to run a recursive search on …

Searching for a pattern in files using grep is case-sensitive by default. Case sensitive means that grep looks for an exact match of your pattern in the related file. This may not surface all matches of the search value because of different writing styles for a given text. This tutorial …

GitHub Actions is a great integration tool in the software platform. For example, you may run your test suite when pushing to the repository or deployment when pushing to a branch connected to a deployed environment. We’re using GitHub Actions for both examples: running our test suite and deployments. …

In the previous tutorial, we looked at adding a new column after an existing column in MySQL. That tutorial showed you how to add a new column at any position in a table, except the first. In this tutorial, we’re adding a new column to the beginning of a …

Adding a new column to a MySQL table will put it at the end of the table. When adding a new column to a table you sometimes want to place it at a given position, next to an existing column in the table. MySQL allows you to place a new …

MySQL is flexible in the data model and allows you to have nullable columns. For example, you’re using NULL as the default date-time value until a given action happens. When displaying the data you may want to apply a specific sorting. But if the sorting column allows NULL values, …

An application in production evolves by adding new features. You may also detect inconsistencies from previous developments that you want to improve, such as the naming in your database schema or adjustments in casing. You can rename columns in MySQL easily and this tutorial shows you how. {{outline}} MySQL 8. …