[wellylug] simple super basic bash question

Mark Signal mark at databackup.co.nz
Mon Jan 10 22:47:54 NZDT 2005


I never realized that the problem was caused by newlines ... logical in 
hindsight

every day theres more to learn

thanks

Mark



Richard Hector wrote:

>On Mon, Dec 20, 2004 at 09:53:46PM +1300, Mark Signal wrote:
>  
>
>>if  file1 contains "hello" and file2 contains "goodbye" and I    'cat 
>>file1 file2 > file3'  then
>>file3 contains 2 lines:
>>hello
>>goodbye
>>
>>how do I do this so that file3 contains the contents of file1 and file2 
>>on one line:
>>hello goodbye
>>    
>>
>
>I know this was a long time ago, and you got the answer you were after,
>but I just spent some time playing around with it.
>
>The hardest task I had was creating file1 and file2 exactly as you
>described - the common tools I used insisted on sticking a newline
>on the end of each, which is what you presumably had, and which is why
>you got 2 lines.
>
>When I did create the files with no newlines, I got this result:
>
>richard at jasper:~/temp$ cat file1
>hellorichard at jasper:~/temp$ cat file2
>goodbyerichard at jasper:~/temp$ cat file1 file2 > file3
>richard at jasper:~/temp$ cat file3
>hellogoodbyerichard at jasper:~/temp$
>
>As I say, I know it's not the answer you were looking for; you've
>already got that. But I think it is a useful demonstration of what was
>actually happening.
>
>BTW - to create the files, I started with the ones you had, then did
>
>dd if=file1 of=file1.tmp bs=1 count=5
>mv file1.tmp file1
>
>Another (simpler) way is
>
>echo -n hello > file1
>
>Does anybody know if it's possible to make vi (or vim or whatever) _not_
>append a newline?
>
>Thanks,
>
>Richard
>
>
>  
>


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