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selective concatenation of rows & columns

 
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# 8  
Old 04-13-2009
Quote:
Originally Posted by tintin72
The solution by cfaJohnson...I couldn't get to work. It just hangs waiting for an input from me. Please could you rewrite it assuming that the letters x , y do not exist in the inputfile and that I would like the output piped to an "outputfile"?

It doesn't make any difference what the first line is; it is discarded. If you don't want to discard it, comment out the read command.

Do you have $FILE set to the path to the data file?
# 9  
Old 04-13-2009
Quote:
Originally Posted by vidyadhar85
you can shrink it toSmilie
Code:
 
awk 'BEGIN{print "x y"}NR>1{for(i=1;i<=NF;i++){print $i" "$(i+1);i++}}' filename

and you can compress it a bit further:
Code:
awk 'BEGIN{print "x y"} {for(i=1;i<=NF;i+=2)print $i, $(i+1)}' filename

# 10  
Old 04-13-2009
Quote:
Originally Posted by vgersh99
and you can compress it a bit further:
Code:
awk 'BEGIN{print "x y"} {for(i=1;i<=NF;i+=2)print $i, $(i+1)}' filename

or type much less charcters Smilie
Code:
 
printf "%s %s\n" $(cat filename)

# 11  
Old 04-13-2009
Quote:
Originally Posted by vidyadhar85
or type much less charcters Smilie
Code:
 
printf "%s %s\n" $(cat filename)

...or getting rid of the UUOC:
Code:
printf "%s %s\n" $(< filename)

# 12  
Old 04-13-2009
Quote:
Originally Posted by vidyadhar85
or type much less charcters Smilie
Code:
 
printf "%s %s\n" $(cat filename)

Quote:
Originally Posted by vgersh99
...or getting rid of the UUOC:
Code:
printf "%s %s\n" $(< filename)


Both of which will produce:

Code:
x y
x y
x y
x y
x y
0 3836
30 3915
60 5984
90 7388
...

That's why the code I posted read the first line from the file and, in its place, printed one instance of "x y".
# 13  
Old 04-13-2009
Quote:
Originally Posted by cfajohnson
Both of which will produce:

Code:
x y
x y
x y
x y
x y
0 3836
30 3915
60 5984
90 7388
...

That's why the code I posted read the first line from the file and, in its place, printed one instance of "x y".
i think you didn't observed this....

Quote:
Originally Posted by tintin72
Thanks guys!

The solutions by Krabu and Vidyadhar85 worked nicely. The x and y I put in for clarity, the original datafile contains only numbers. your solutions works for either case.

The solution by cfaJohnson...I couldn't get to work. It just hangs waiting for an input from me. Please could you rewrite it assuming that the letters x , y do not exist in the inputfile and that I would like the output piped to an "outputfile"? thanks.
# 14  
Old 04-14-2009
hello cfajohnson,

Yes, I have $FILE set to my inputfile path. It still hangs. your script syntax isn't quite right it seems or perhaps it has something to do with my shell? I use bash.
Code:
$(cat < $file) > outputfile

works nicely but
Code:
($cat) < $file

dosen't.
 
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