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Squares in saved code

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# 1  
Old 03-26-2016
Squares in saved code
can you help

i am merging 2 files together and saving to a third file with awk
and its working with this code

Code:
awk 'OFS="";NR==FNR{a[FNR]=$0;next} {print a[FNR],"\n","\b",$0}' file1 file2 > file3

the problem is in file3 when its saved
i get a small square at the start of every 2nd line (see picture)

i need to get rid of the squares
whats wrong with the code ?

thanks


File 1
======
Code:
AAAA
BBBB
CCCC

File 2
======
Code:
XXXX
YYYY
ZZZZ

File 3
======
Code:
AAAA
XXXX
BBBB
YYYY
CCCC
ZZZZ

Squares in saved code
Last edited by Scrutinizer; 03-26-2016 at 07:12 PM.. Reason: code tags
# 2  
Old 03-26-2016
Why are you printing a backspace character (\b) ? Just leave it out.



--
As a matter of efficiency, set OFS="" in the BEGIN section...
In fact, you do not need it at all if your use print a[FNR] "\n" $0
Last edited by Scrutinizer; 03-26-2016 at 07:16 PM..
This User Gave Thanks to Scrutinizer For This Post:
bob123
# 3  
Old 03-26-2016
@Scrutinizer

i have removed \b from the code

Code:
awk 'OFS="";NR==FNR{a[FNR]=$0;next} {print a[FNR],"\n",$0}' file1 file2 > file3

and the squares have gone

thank you
# 4  
Old 03-27-2016
This is exactly what paste is for:
Code:
paste -d"\n" file[12]
AAAA
XXXX
BBBB
YYYY
CCCC
ZZZZ

This User Gave Thanks to RudiC For This Post:
bob123
# 5  
Old 03-27-2016
Quote:
Originally Posted by bob123
@Scrutinizer

i have removed \b from the code

Code:
awk 'OFS="";NR==FNR{a[FNR]=$0;next} {print a[FNR],"\n",$0}' file1 file2 > file3

and the squares have gone

thank you
If you go with awk instead of RudiC's suggestion of paste you can still simplify your code (as Scrutinizer suggested) and get exactly the same output:
Code:
awk 'NR==FNR{a[FNR]=$0;next} {print a[FNR] "\n" $0}' file1 file2 > file3

(Note that the commas in your print statement are the only things that use the value of OFS in your script.)
This User Gave Thanks to Don Cragun For This Post:
bob123
# 6  
Old 03-27-2016
Or
Code:
awk 'NR==FNR{a[FNR]=$0;next} {print a[FNR]} 1' file1 file2 > file3

This User Gave Thanks to RudiC For This Post:
bob123
# 7  
Old 03-27-2016
Or:
Code:
awk '1;getline<f>0' f=file2 file1 > file3

These 2 Users Gave Thanks to Scrutinizer For This Post:
bob123 Don Cragun
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