Chmod 610 Explained
Chmod 610: owner read+write, group execute-only, no access for others. For scripts where group members run but don't read the source.
Permission
610
rw---x---
chmod 610 filename
Permission Breakdown
| Role | Read (4) | Write (2) | Execute (1) | Octal | Meaning |
|---|---|---|---|---|---|
| Owner | r | w | - | 6 | read, write |
| Group | - | - | x | 1 | execute |
| Others | - | - | - | 0 | no permissions |
Visual Permission Grid
Detailed Explanation
The permission 610 gives the owner read-write access, the group execute-only access, and no access for others.
Octal breakdown:
- 6 (Owner): read (4) + write (2) = read and write
- 1 (Group): execute (1) only
- 0 (Others): no access
In symbolic notation this is rw---x---. The owner can read and modify the file. Group members can only execute it (they cannot read or modify it). Others are completely blocked.
For compiled binaries, this means the group can run the program without being able to inspect or copy it. For directories, the group can traverse into it but cannot list contents. This creates a secure execution model where the owner maintains the code and the group simply uses it.
Use Case
Used for proprietary compiled binaries where group members need to execute the program but should not have access to read or copy the binary.