Security: Dangerous

chmod 666 β€” rw-rw-rw-

Read and write for EVERYONE (rw-rw-rw-). No execution rights.

Live Interactive Permission Matrix

Linux chmod Calculator & Generator

Octal Value
666
Symbolic
rw-rw-rw-
Quick Presets:
Owner (User)
The file creator
6
Group
Team or service account
6
Public (Others)
All other system users
6
Security Assessment
Status: Dangerous
View Full chmod 666 Guide β†’
Target:
chmod 666 deploy.sh
chmod -R 666 /var/www/deploy.sh

Interactive Permission Matrix (rwx)

RoleRead (r - 4)Write (w - 2)Execute (x - 1)Octal Total
Owner (User)6
Group6
Others (Public)6

Copyable chmod 666 Commands

Apply to Single File
chmod 666 target_file
Apply Recursively to Directory
chmod -R 666 /path/to/folder
Only Apply to Directories (find)
find /path/to/folder -type d -exec chmod 666 {} +
Only Apply to Files (find)
find /path/to/folder -type f -exec chmod 666 {} +

Recommended Real-World Use Cases

  • β€’Special FIFO pipes and local mock devices
  • β€’Temporary debug log fixtures

Security Consideration

SECURITY RISK: Any local user or malicious daemon can overwrite files with chmod 666, leading to data tampering or denial of service.

Frequently Asked Questions

chmod 666 Questions & Answers

Common questions regarding Linux permissions, security risks, and recursive chmod commands.

Read and write for EVERYONE (rw-rw-rw-). No execution rights. In symbolic notation, this is represented as "rw-rw-rw-".