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Full Discussion: Looking for AWK Solution for column comparison in a single file
Top Forums Shell Programming and Scripting Looking for AWK Solution for column comparison in a single file Post 302424512 by softwarekids23 on Tuesday 25th of May 2010 12:24:49 PM
Old 05-25-2010
Looking for AWK Solution for column comparison in a single file
- I am looking for different kind of awk solution which I don't think is mentioned before in these forums.

Number of rows in the file are fixed
Their are two columns in file1.txt

1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10


I am looking for 3 scenarios.
- If column 1 and 2 are same then generate PASS in Third Column (I have figured out this).
- If a number in Column 1 is less than column 2 (which means a number is missing in column 2)then
--generate FAIL in Column 3.
-- Move the number in Column 2 of that row to next row. Move all the numbers in column 2 after that number in thier next rows.
-- generate MISSING In Column 2.

-- Below is the example

file1.txt
1 1
2 3
3 4
4 5
5 7
6 8
7 9
8 10
9
10

As per second scenario what I want is

file1.txt
1 1 PASS
2 MISSING FAIL
3 3 PASS
4 4 PASS
5 5 PASS
6 MISSING FAIL
7 7 PASS
8 8 PASS
9 9 PASS
10 10 PASS

- If a number in Column 1 is greater than column 2 (which means a number is missing in column 1)then
--generate FAIL in Column 3.
-- Move the number in Column 1 of that row to next row. Move all the numbers in column 1 after that row in their next rows.
-- generate MISSING in Column 1.
-- Below is the example

file1.txt
1 1
3 2
4 3
5 4
7 5
8 6
9 7
10 8
9
10

As per third scenario what I want is

file2.txt
1 1 PASS
MISSING 2 FAIL
3 3 PASS
4 4 PASS
5 5 PASS
MISSING 6 FAIL
7 7 PASS
8 8 PASS
9 9 PASS
10 10 PASS


- I have figured out PASS FAIL logic which is basically comparison between 2 columns. But I am not able to figure out moving rows logic.
- Any help for this is really appreciated.
 

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LEARN ABOUT MOJAVE

colrm

COLRM(1)						    BSD General Commands Manual 						  COLRM(1)

NAME

     colrm -- remove columns from a file

SYNOPSIS

     colrm [start [stop]]

DESCRIPTION

     The colrm utility removes selected columns from the lines of a file.  A column is defined as a single character in a line.  Input is read
     from the standard input.  Output is written to the standard output.

     If only the start column is specified, columns numbered less than the start column will be written.  If both start and stop columns are spec-
     ified, columns numbered less than the start column or greater than the stop column will be written.  Column numbering starts with one, not
     zero.

     Tab characters increment the column count to the next multiple of eight.  Backspace characters decrement the column count by one.

ENVIRONMENT

     The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).

EXIT STATUS

     The colrm utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     awk(1), column(1), cut(1), paste(1)

HISTORY

     The colrm command appeared in 3.0BSD.

BSD
								  August 4, 2004							       BSD
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