chmod Common Permissions: 644, 755, 777 & More Explained

Quick reference for the most common chmod permission values: 644, 755, 700, 600, 777 and when to use each.

Quick Reference

644  rw-r--r--  Standard files\n755  rwxr-xr-x  Directories and scripts\n700  rwx------  Private directories (~/.ssh)\n600  rw-------  Private files (SSH keys, .env)\n775  rwxrwxr-x  Shared team directories\n666  rw-rw-rw-  Almost never correct\n777  rwxrwxrwx  NEVER use in production

Calculate any permission: Chmod Calculator

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