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column to row convert - script - help

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Top Forums Shell Programming and Scripting column to row convert - script - help
# 1  
Old 11-13-2008
column to row convert - script - help
Hi,

I have a file named col.txt

Code:
1.000
2.000
3.000
4.000
5.000
6.000
7.000
8.000

I should get this

Code:
1.000 5.000
2.000 6.000
3.000 7.000
4.000 8.000

# 2  
Old 11-13-2008
Hammer & Screwdriver Here si one approach
Show the original file
Code:
> cat file68
1.000
2.000
3.000
4.000
5.000
6.000
7.000
8.000

Split the file after 4 lines, paste together, get rid of temporary files
Code:
> split -4 file68 f68s; paste f68saa f68sab; rm f68saa f68sab
1.000   5.000
2.000   6.000
3.000   7.000
4.000   8.000

Same as previous, except write to a file rather than the screen
Code:
> split -4 file68 f68s; paste f68saa f68sab > file68new; rm f68saa f68sab
> cat file68new
1.000   5.000
2.000   6.000
3.000   7.000
4.000   8.000

# 3  
Old 11-13-2008
Thanks, works fine.

And what about this:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

I would like the same as above, split after 4 lines and should get 4 columns...
# 4  
Old 11-13-2008
Code:
#  nawk '{t[NR%4]=t[NR%4]" "$0} END {for (i=1;i<=3;i++){print t[i]};print t[0]} ' infile
      1      5      9     13
      2      6     10     14
      3      7     11     15
      4      8     12     16

# 5  
Old 11-13-2008
more generic:

Code:
#  nawk -v m=4 '{t[NR%m]=t[NR%m]" "$0} END {for (i=1;i<=m-1;i++){print t[i]};print t[0]} ' infile
      1      5      9     13
      2      6     10     14
      3      7     11     15
      4      8     12     16


#  nawk -v m=2 '{t[NR%m]=t[NR%m]" "$0} END {for (i=1;i<=m-1;i++){print t[i]};print t[0]} ' infile
      1      3      5      7      9     11     13     15
      2      4      6      8     10     12     14     16

# 6  
Old 11-13-2008
Excellent, thanks!
# 7  
Old 11-13-2008
Edit: just realized the OP wants a different output, so please ignore.

Quote:
Or:

Code:
$ print '1.000
2.000
3.000
4.000
5.000
6.000
7.000
8.000'| paste - -
1.000   2.000
3.000   4.000
5.000   6.000
7.000   8.000
$ print -l {1..16} | paste - - - -
1       2       3       4         
5       6       7       8
9       10      11      12
13      14      15      16

Last edited by radoulov; 11-13-2008 at 12:45 PM..
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