Thursday, December 13, 2012

Change user properties in AIX

Today I needed to change the umask value for a user in AIX. It was set to default: 022
That means that files will be created with 644 permissions. To allow the user to create files with 666 permissions by default I needed to change the umask value for the user. First I checked the current umask value:

# lsuser sneill
... umask=22 ...

Since the user creates files with 644 permissions that was not surprising. Then I changed the umask value to zero:

# chuser umask=0 sneill

And checked again:

# lsuser sneill
... umask=0 ...

Now the user will create files with 666 permission by default (and 777 for directories).

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