On Sunday 29 May 2005 02:18, Paul M Foster wrote:
> On Sat, May 28, 2005 at 10:31:20PM -0400, Bob Stia wrote:
> > On Wednesday 25 May 2005 21:27, Eben King wrote:
> > > On Wed, 25 May 2005, Bob Stia wrote:
>
> <snip>
>
> > I put a set -x above and a set +x below and this is what i got:
> > ----------------------------------------------------------------
> > Running /home/bob/commands/ImageMagickConvert
> >
> > /home/bob/commands/ImageMagickConvert: line 34:
> >
> > : command not found
> >
> > /home/bob/commands/ImageMagickConvert: line 35:
> >
> > : command not found
> >
> > /home/bob/commands/ImageMagickConvert: line 36:
> >
> > : command not found
> >
> > /home/bob/commands/ImageMagickConvert: line 37:
> >
> > : command not found
>
> Bob:
>
> There's a really serious anomaly here. As you run this, you're a
> "command not found" error on lines 34 through 37. But here's the
> problem: if you count down, some of those lines contain nothing, so
> there's no reason you should be getting that error. Moreover, if the
> error was occurring on lines where there's actual code, you shouldn't
> get that error but a different one. And the set +x would give you a
>
> some_command: command not found
>
> rather than just
>
> : command not found
>
> I just ran a test on something. Check to see if this file was created
> under DOS or Windows. Better, find a hex editor or something that
> will look at the file in hex. Actually the "less" command should do
> this. Just type:
>
> less /home/bob/commands/ImageMagickConvert
>
> or whatever the name of the script is. If you see some stuff in there
> that looks like this:
>
> ^M
>
> then the file was created under DOS and will not run properly under
> Linux. In fact, you may well get exactly the error you're getting.
> The reason is this: under DOS, a line termination is carriage return
> and then linefeed. Under Mac, a line termination is just a carriage
> return. Under Linux and Unix, it's just a linefeed. When Linux/Unix
> sees a carriage return in certain places in a script, it gets
> confused. I won't explain why unless you just want to know. Suffice
> it to say, it's a problem.
>
> Do what I said above and let us know if the file contains those ^M
> (carriage return) characters.
>
> Paul
Paul,
Ran the "less" command. There is nothing of which you speak. FYI I got
the script from the SuSE list. I am positive it was created in Linux.
Have a thought. I copied the script from the email message and then
modified it using Kwrite. During that process I added line feeds etc.
and deleted lines and seemingly unimportant spaces. I would think that
a text editor like Kwrite would add the proper LF and nothing else.
Question is: Is it critical for the amount of spaces/ tabs before or
after a line remain exactly as in the original ?? I notice that in most
scripts the first character in subsequent lines are spaced back from
the actual start of the line.
Maybe I should just create the script by hand using the original as a
guide rather than taking the original and simply modifying it.
Bob S.
PS Stick with me Paul & Eben. I want to solve this.
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