fgetfilecon_raw - Linux

Overview

fgetfilecon_raw is a powerful utility that allows you to retrieve the security context of a file by reading it directly from the file system. It is commonly used for security auditing, file system analysis, and troubleshooting.

Syntax

fgetfilecon_raw [OPTIONS] PATH

Options/Flags

• -Q, –quote-same: Do not print the quotes around the security context.
• -v, –verbose: Enable verbose output, providing additional details about the retrieved security context.
• -z, –null-terminated: Print the security context terminated by a null byte.
• –version: Display the command’s version information.
• -h, –help: Show a brief help message.

Examples

Retrieve the security context of a file without quotes:

fgetfilecon_raw -Q /etc/passwd

Display the detailed context information:

fgetfilecon_raw -v /home/user/file.txt

Print the context terminated by a null byte:

fgetfilecon_raw -z /bin/bash > context.txt

Common Issues

• Permission Denied: Ensure you have adequate file permissions to read the target file.
• File Not Found: Verify that the specified file path exists.
• Empty Context: The file may not have a security context assigned to it.

Integration

Integrate with grep: Filter the retrieved context:

fgetfilecon_raw /tmp/ | grep user:

Combine with xargs: Execute subcommands on multiple files:

find /tmp -type f | xargs -n1 fgetfilecon_raw

Related Commands

• getfacl: Modify file access control lists
• ls -lZ: Display file permissions with security context
• securityfs: Explore the in-memory security file system