New Eyes on an awk script

[Brad De Vries]

On Mon, 15 Nov 2004 06:01:23 -0800, Shawn Tayler
<stayler at xmtservices.net> wrote:
> Thanks Brad,
> 
> Well this did change something.  The syntax error now points to the '&&" in
> the if statements.   According to my not so great SED & AWK book from
> O'Reilly, this is supposed to be a logical AND.
> 
> Any suggestions?
> 
> Shawn
> 
> On Mon, 15 Nov 2004 08:18:56 -0500 Brad De Vries <devriesbj at gmail.com>
> exclaimed:
> 
> 
> 
> > On Sun, 14 Nov 2004 11:15:37 -0800, Shawn Tayler
> > <stayler at xmtservices.net> wrote:
> > > Would one of you more knowledgable type show me the stupid mistake I am
> > > making with the following awk script?  I have been banging my head
> > > against the "syntax error" wall for a while now.
> > >
> > > BEGIN { FS = "," }
> > > ++x
> > > if ( NF == 9 )  { print
> > > x","$1","$2","$3","$4","$5","$6","$7","$8","$9",NA" } if ( NF == 10 )
> > > && ( $9 == $10 ) { print
> > > x","$1","$2","$3","$4","$5","$6","$7","$8","$9",NA" } if ( NF == 10 )
> > > && ($9 != $10 ) { print
> > > x","$1","$2","$3","$4","$5","$6","$7","$8","$9","$10 } if ( NF == 8 ) {
> > > print x","$1","$2","$3","$4","$5","$6","$7","$8", , " }
> > >
> > > I keep getting a syntax error on the if statement.
> > >
> > > Shawn
> >
> > Two things Shawn; first, the block you want to execute must be
> > enclosed in braces and second, the entire condition for each "if" must
> > be enclosed in parenthesis.  Try:
> > -------
> > BEGIN { FS = "," }
> >       {
> >         ++x
> >         if ( NF == 9 )  { print
> > x","$1","$2","$3","$4","$5","$6","$7","$8","$9",NA" }
> >         if (( NF == 10 ) && ( $9 == $10 )) { print
> > x","$1","$2","$3","$4","$5","$6","$7","$8","$9",NA" }
> >         if (( NF == 10 ) && ($9 != $10 )) { print
> > x","$1","$2","$3","$4","$5","$6","$7","$8","$9","$10 }
> >         if ( NF == 8 ) { print
> >         x","$1","$2","$3","$4","$5","$6","$7","$8", , " }
> >       }
> > -------
> >
> > Brad.

Strange, here's what I've got, how does it compare with what you've got:
-------
/home/bjd/tmp> cat it.awk
BEGIN { FS = "," }
      {
        ++x
        if ( NF == 9 )  { print
x","$1","$2","$3","$4","$5","$6","$7","$8","$9",NA" }
        if (( NF == 10 ) && ( $9 == $10 )) { print
x","$1","$2","$3","$4","$5","$6","$7","$8","$9",NA" }
        if (( NF == 10 ) && ($9 != $10 )) { print
x","$1","$2","$3","$4","$5","$6","$7","$8","$9","$10 }
        if ( NF == 8 ) { print x","$1","$2","$3","$4","$5","$6","$7","$8", , " }
      }
/home/bjd/tmp> cat data
a,b,c,d,e,f,g,h,i
a,b,c,d,e,f,g,h,i,j
a,b,c,d,e,f,g,h,i,i
a,b,c,d,e,f,g,h
/home/bjd/tmp> awk -f it.awk < data
1,a,b,c,d,e,f,g,h,i,NA
2,a,b,c,d,e,f,g,h,i,j
3,a,b,c,d,e,f,g,h,i,NA
4,a,b,c,d,e,f,g,h, ,
/home/bjd/tmp> rpm -qa | grep -i awk
gawk-3.1.1-9
-------