bash - awk- print a column in different rows -


I have this simplified table of numbers formed by 2 columns and several rows. Here is the point for each column, take the value and sort them into rows so that each row has 4 values. This file.txt: 

  1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2

And this is the result I want : 

  1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2

I do the following, I am creating a script for clarity. Wk. 

  awk -f script.awk file.txt

where script.awk is 

  {I = 1; I & lt; = NF; I ++) printf "% s" (NR% 4 == 0? RS: FS), $ i;}

but it does not wok I know that the following command is a Works for columns, but I do not know why they do not work for loops in each column. 

  {printf "% s" (NR% 4 == 0? RS: FS), $ 1;}

If possible, then I I'm new to this language because I want an explanation of sommands being used. Thanks!

I will post a common solution: 

  awk '{s} For (i = 1; i & lt; = nf; i ++) a [i, nr] = $ i; } For end {} (i = 1; i & lt; = nf; i ++) {for (j = 1; j & lt; = nr; j ++) printf "% s% s", a [ I, j], (j% 4 = = 0 || j == nr? "\ N": ""); }} 'File

This works for the dynamic column in your input file, for example: 

  kent $ cat f 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 for kent $ awk '{(i = 1; i & lt; = nf ; I ++) A [i, nr] = $ i; } For end {} (i = 1; i & lt; = nf; i ++) {for (j = 1; j & lt; = nr; j ++) printf "% s% s", a [ I, j], (j% 4 = = 0 || j == nr? "\ N": ""); }} 'F1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4
< P> You need to change the 4 to control how many boxes you have in your output, also it is awk -v cols = "$ var" ...

is easy to put into an argument
-

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