[PLUG] shell scripting problem

D. Cooper Stevenson cooper at linux-enterprise.net
Fri Jun 7 01:28:13 UTC 2002


Matt;

Hang on, I mis-interpreted your message. Script coming...


-Cooper

> On Thu, 2002-06-06 at 17:52, Matt Alexander wrote:
> 
>  
> > I have about 200 names in /etc/group that I want to remove.  They're all
> > under a generic "users" group.
> 
> #***********Cut Here***************************
> #!/bin/bash
> 
> input_file=your_name_list
> passwd_file=/etc/passwd
> shadow_file=/etc/shadow
> temp_passwd_file=/tmp/passwd
> temp_shadow_file=/tmp/shadow
> 
> cat $input_file | while read name
> do
>   sed /$name/d $passwd_file > $tmp_passwd_file
>   sed /$name/d $shadow_file > $tmp_shadow_file
> done
> 
> #**********End Script***************************
> 
> Make the script above executable.
> 
> Check out the password and shadow files in the /tmp directory to see
> that the results were satisfactory.
> 
> MAKE SURE YOU DELETE THE TEMP FILES AFTER YOU ARE FINISHED AND BE
> *CERTAIN* THE PERMISSIONS ON THE PERMANENT PASSWORD AND SHADOW FILES ARE
> CORRECT!
>  
> 
> -Cooper
> 
>   I have a file that contains the names that I
> > want to remove, and I'm looking for a wizbangwowzerz *nix way to read in
> > all those names and delete them from the group file.  I'll also need to
> > delete the comma after each name.
> > 
> > I'm thinking something along these lines...
> > 
> > for name in `cat namefile`;do sed s/$name,// group;done
> > 
> > Obviously this won't work, but that's sort of where I'm thinking now...
> > pull each name and the following comma out of the group file and then
> > somehow magically rewrite the group file when I'm done.
> > 
> > Any suggestions?
> > Thanks,
> > ~M
> > 
> > 
> > _______________________________________________
> > PLUG mailing list
> > PLUG at lists.pdxlinux.org
> > http://lists.pdxlinux.org/mailman/listinfo/plug
> > 
> 
> 
> 
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