Performing CRUD on Files
When working with files in any system or application, understanding and performing CRUD operations (Create, Read, Update, and Delete) is essential for implementing robust cyber security measures.
Windows: You can create new files using the built-in text editor (Notepad) or dedicated file creation software. You can also use PowerShell commands for quicker file creation. The
New-Itemcommand followed by the file path creates a file.
New-Item -Path "C:\Example\example.txt" -ItemType "file"
Linux: Unlike Windows, file creation is usually done through the terminal. The
touchcommand helps create a file in the desired directory.
Windows: You can read a file using standard file readers, such as Notepad, Wordpad, etc., or you can utilize PowerShell commands. The
Get-Contentcommand provides the file content.
Get-Content -Path "C:\Example\example.txt"
catcommand is the most common way to read the contents of a file in Linux.
Windows: File updating can be accomplished using the previously mentioned text editors or PowerShell. The
Add-Contentcommands are useful for updating a file.
Set-Content -Path "C:\Example\example.txt" -Value "Updated content" Add-Content -Path "C:\Example\example.txt" -Value "Appended content"
Linux: Linux uses the built-in text editors, such as
vim, to update files. Alternatively, the
echocommand can append content to a file.
echo "Appended content" >> /example/example.txt
Windows: File deletion is performed by right-clicking the file and selecting ‘Delete’ or using PowerShell commands. The
Remove-Itemcommand followed by the file path can delete a file.
Remove-Item -Path "C:\Example\example.txt"
rmcommand allows you to delete a file in Linux.
By mastering these CRUD operations, you can enhance your cyber security knowledge and implement effective incident response and file management strategies.