[nmglug] Postfix

[Karl Hegbloom]

Mars DeLapp wrote:
> Opps! I was trying to coordinate UIDs and GIDs between computers and I 
> screwed up the ownership of some files when I ran the following command.
> 
>   find / -group 1002 -print -exec chown 202 {} \;
> 
> that should have been "chown :202"

Once I was working in XEmacs 'dired', changing the ownership and 
permsissions of a whole tree of files...  I goofed and acted on . which 
whas the / directory, rather than on *, the marked set of directories. 
It was taking way to long to run...

I used the file system of another machine as a template to reset things. 
  It wasted half my day.  I'll bet that I never make that mistake again!