Sort in ascending and descending column by defined blocks of rows.


 
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# 1  
Old 02-29-2020
Sort in ascending and descending column by defined blocks of rows.

I am trying to sort column 2 considering blocks of 5 rows all time.
E.g.
First block rows 1 to 5 : Sort column 2 in ascending order
Second block rows 6 to 10 : Sort column 2 in descending order

Do this operation in all file

Input file
Code:
P 45683.00  39785.00 1 12 
P 45685.00  39785.00 1 12 
P 45687.00  39785.00 1 12 
P 45689.00  39785.00 1 12 
P 45691.00  39785.00 1 12 
P 45683.00  39795.00 1 12 
P 45685.00  39795.00 1 12 
P 45687.00  39795.00 1 12 
P 45689.00  39795.00 1 12 
P 45691.00  39795.00 1 12 
P 45683.00  39805.00 1 12 
P 45685.00  39805.00 1 12 
P 45687.00  39805.00 1 12 
P 45689.00  39805.00 1 12 
P 45691.00  39805.00 1 12 
P 45683.00  39815.00 1 12 
P 45685.00  39815.00 1 12 
P 45687.00  39815.00 1 12 
P 45689.00  39815.00 1 12 
P 45691.00  39815.00 1 12

desired output
Code:
P 45683.00  39785.00 1 12 
P 45685.00  39785.00 1 12 
P 45687.00  39785.00 1 12 
P 45689.00  39785.00 1 12 
P 45691.00  39785.00 1 12 
P 45691.00  39795.00 1 12 
P 45689.00  39795.00 1 12 
P 45687.00  39795.00 1 12 
P 45685.00  39795.00 1 12 
P 45683.00  39795.00 1 12 
P 45683.00  39805.00 1 12 
P 45685.00  39805.00 1 12 
P 45687.00  39805.00 1 12 
P 45689.00  39805.00 1 12 
P 45691.00  39805.00 1 12 
P 45691.00  39815.00 1 12 
P 45689.00  39815.00 1 12 
P 45687.00  39815.00 1 12 
P 45685.00  39815.00 1 12 
P 45683.00  39815.00 1 12

I tried

Code:
awk '/45691.00/{"awk \\$0+0==\\$0 "file | getline x}
{print x"~"FNR"~"$0 | "sort -k2,2n "}'

Thanks in advance

Last edited by jiam912; 02-29-2020 at 02:13 PM..
# 2  
Old 02-29-2020
Hi
Code:
vim -nes +'%!sort -bk3,3.5' +'6,11!sort -k2,2.6r' +'16,20!sort -k2,2.6r' +%p +q! file

If this is what you need change to the following and the file will be overwritten
Code:
vim -nes +'%!sort -bk3,3.5' +'6,11!sort -k2,2.6r' +'16,20!sort -k2,2.6r' +wq file


Last edited by nezabudka; 02-29-2020 at 05:23 PM..
# 3  
Old 02-29-2020
Try (untested):
Code:
awk '{print int((NR-1)/5), $0}' file | sort -k1,1n -k3,3 | cut -f2-


EDIT: the descending sort of every other block escaped me on first read. Try (still untested)


Code:
awk '{TMP = int((NR-1)/5); $2 = (TMP%2?"-":"") $2; print TMP, $0}' file1 | sort -k1,1n -k3,3g | awk '{sub (/-/, "", $3); sub ("^" $1 FS, "");} 1'


Last edited by RudiC; 03-02-2020 at 04:02 AM..
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