Alissa-
I don't know if you know perl at all, however, it makes doing your job a
lot easier...and prettier. ::smile::
The attatched script does precisely what you wanted. There's one caveat,
though. It doesn't just look for .com .net .edu .au etc...it just shaves
off whatever comes after the last . and the end of the string.
The code is heavily commented, and I mention the above caveat there.
The script, of course, doesn't address file locking and what not. But I
don't think that file locking is a concern, as I can't feature this being
run by more than one person at once.
Cheers!
Sam
On Thu, 28 Sep 2000, alissa bader wrote:
> I would like to thank everyone who helped me with that
> DNS script the other day. This is how I wound up
> writing it:
>
> #!/bin/sh
> # to fix secondary dns entries
>
> for DOMAIN in `cat /tmp/ns1stuff`
> do
> for DIR in `echo $DOMAIN |cut -c1`
> do
> echo "zone" '"'"$DOMAIN"'"' "{" >>
> /etc/named.conf
> echo " type slave;" >>
> /etc/named.conf
> echo ' file "'$DIR'/db.'$DOMAIN'";'
> >> /etc/named.conf
> echo " masters {" >> /etc/named.conf
> echo " 204.177.32.2;" >>
> /etc/named.conf
> echo " };" >> /etc/named.conf
> echo "};" >> /etc/named.conf
> echo "" >> /etc/named.conf
> done
>
> (excuse please the ratty formatting here, damned
> web-based email crap)
>
> I opted not to drop the toplevel domain off of every
> domain name, as we might run into duplicates here.
>
> cut, as it turns out, really is my friend. :>
>
> One thing I have noticed: you have to be really
> careful and specific when you define each variable and
> for loop. I have written a number of little scripts
> that only ask for one variable. And I was agonizing
> for hours over how to define a second one. Finally it
> hit me to just add a for loop for it. And wouldn't
> you know it, it worked!
>
> sed sounds like it's pretty much worth knowing,
> although I didn't have to use it in this script. time
> to poke over the man pages!
>
> again, thank you all so much, never could have gotten
> it working without you. :>
>
> --alissa
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Photos - 35mm Quality Prints, Now Get 15 Free!
> http://photos.yahoo.com/
>
> _______________________________________________
> techtalk mailing list
> [EMAIL PROTECTED]
> http://www.linux.org.uk/mailman/listinfo/techtalk
>
--
-------------------------------------------------------------------------------
Sam Lavenz -- KC0BUH
[EMAIL PROTECTED]
"I recognize no obligations toward men except one: to respect their
freedom and to take no part in a slave society"
-- Ayn Rand -- _The Fountainhead_ --
#!/usr/bin/perl
# This saves us some headaches...if there aren't two arguments, we
# print a usage message and exit.
unless ( scalar( @ARGV ) == 2 )
{
print "Usage: $0 [infile] [outfile]\n";
exit;
}
# We read from the file in the first argument
# We append to the file in the second
open INFILE, "<$ARGV[0]" or die "Could not open input file: $!";
open OUTFILE, ">>$ARGV[1]" or die "Could not open output file: $!";
# As long as we're getting input from our INFILE
while( <INFILE> )
{
next if /^$/; # Go on to the next line if this line is blank
chomp;
# This is where all the magic is done.
# We just run a pattern match on the string we've read in.
# The first set of parens captures anything up to the last
# period followed by anything, it stores it in $1
# The second (inner) set of parens captures the first character
# and stores it in $2.
#
# This effectively discards *anything* between the last . and the
# end of the string.
# mydomain.com => mydomain
# mydomain.yourdomain => mydomain
# so on
m/^((\w).*)\..*$/;
# $_ here is simply the string.
print OUTFILE "zone \"$_\" {\n",
"\ttype slave;\n",
"\tfile \"$2/db.$1\";\n\n",
"\tmasters {\n\t\t204.177.32.2;\n\t};\n",
"};\n\n";
}
close OUTFILE and close INFILE;
