July 2025

As a Linux user or administrator, you often need to track file changes—whether to debug an application, monitor system activity, or investigate a security breach. The find command is a powerful tool for this, and one of its useful options is -ctime n, which helps locate files modified within a specific timeframe.

When connecting to a Linux server, we need to know the name of the running Linux distribution, its version number, and the kernel version number.

This is often done to determine:

It is usually not possible to clear the Drupal cache via the site administration or via the command:

 drush cache-rebuild

In this case the only way available is to clear the cache via the database with the command

 TRUNCATE

The question now is which tables should be flushed and which ones are cached?

If you want to send an email to multiple recipients at once, you can enter all recipient addresses, separated by commas (“,”), in one of the following fields:

• "To"
• "Carbon Copy" (Cc)
• "Blind Carbon Copy" (Bcc).

In all cases, all addresses entered in these fields receive a copy of the message without retyping or re-creating it. But what is the difference between a carbon copy and a blind carbon copy?