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quick question



3:24 pm on Oct 12, 2004 (gmt 0)

10+ Year Member

Does chmod a+w = 777
and chmod a-w = 666

I understand that 666 is -rw-rw-rw- but is it also a-w? I don't understand that part.

I'm just trying to change the chmod in ftp instead of the command line.


4:25 pm on Oct 12, 2004 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member


a+w adds write ability to user, group, and other.

a-w removes write ablility from user, group and other.

"alphabet" format modifies permissions of existing files, while the "numeric" format overwrites permissions.

See chmod(1):


8:43 pm on Oct 12, 2004 (gmt 0)

10+ Year Member

This is for a file in a script and the instructions for it said to do it from the command line but if you don't have access you can do it from ftp, so I figured a-w or 644 was pretty much the same thing. Seemed to work the same.

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