question about chmod

['chris']

hi everyone

is there any difference between:

# chmod 01777 /var/mail

and

# chmod 1777 /var/mail

[TY 007 · Accepted solution]

Hi Chris,

No difference.

# man chmod
/usr/bin/chmod [-A] [-R] numeric_mode file ...

Absolute permissions can be set by specifying a numeric_mode, an octal number ...

Thanks

[Ivan Krastev]

No difference.
For chmod 01777 is exact as 1777.



regards,
ivan

[Ivan Ferreira]

According to "man 2 chmod", only four digits are used in the command. In that case, either command will do the same.

According to this page:

http://www.security-express.com/archives/php/2007-08/0003.html

The 5 digit should cause problems in php "chmod" funcion.

[James R. Ferguson]

Hi:

Use the 4-digits only. The idea behind prepending a zero is to underscore the fact that the argument is an octal number. However, that is assumed by 'chmod'.

Regards!

...JRF...