How to copy or cut specific rows from appended file with some conditions Post: 302739619

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Top Forums Shell Programming and Scripting How to copy or cut specific rows from appended file with some conditions Post 302739619 by Don Cragun on Tuesday 4th of December 2012 02:24:20 PM

12-04-2012

Registered User

Quote:

Originally Posted by nex_asp

Hi I have one file which is containing about 5000 rows and 20 columns

I will just explain about my requirement here briefly with sample file, I have attached also, please help....me..

Code:

1    28.25    36.42
5    28.26    36.42
10    28.23    36.43
15    28.22    36.43
20    28.2    36.42
25    28.19    36.43
0    28.25    36.42
1    28.26    36.42
5    28.23    36.43
10    28.22    36.43
15    28.2    36.42
20    28.19    36.43
25    28.25    36.42
3    28.26    36.42
5    28.23    36.43
10    28.22    36.43
15    28.2    36.42
20    28.19    36.43

consider 1st column only

here 1st station profile is 5 to 25, script has copy or cut 5 rows in a file, and to paste it in new file...

2nd profile starts from 0 to 25 script has copy or cut 6 rows in a file, and to paste it in another new file...

3rd profile starts from 3 to 20 script has copy or cut 5 rows in a file, and to paste it in another new file... till the end of file

I don't understand what a station profile is nor how a shell script is supposed to figure out what lines to ignore and what lines to copy into the new files.

Scrutinizer's awk script makes a perfectly reasonable assumption that you want to take each grouping of lines with increasing values in the 1st column into separate files. But, you say that the 1st new file should contain 5 rows while Scrutinizer's awk script will make newfile_1 contain 6 rows. You say that the 2nd new file should contain 6 rows, but Scrutinizer's awk script will make newfile_2 contain 7 rows. The only match is that you say the the 3rd new file should contain 5 rows and Scrutinizer's script will print 5 rows into newfile_3.

Please explain what logic should be used to produce the output you want AND please post the output that you believe should appear in those three files (in CODE tags).

Don Cragun

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LEARN ABOUT PHP

pg_num_rows

PG_NUM_ROWS(3)															    PG_NUM_ROWS(3)

pg_num_rows - Returns the number of rows in a result

SYNOPSIS

       int pg_num_rows (resource  $result)

DESCRIPTION

       pg_num_rows(3) will return the number of rows in a PostgreSQL result resource.

       Note

	       This function used to be called pg_numrows(3).

PARAMETERS

	      o $result
		- PostgreSQL query result resource, returned by pg_query(3), pg_query_params(3) or pg_execute(3) (among others).

RETURN VALUES

	The number of rows in the result. On error, -1 is returned.

EXAMPLES

       Example #1

	      pg_num_rows(3) example

	      <?php
	      $result = pg_query($conn, "SELECT 1");

	      $rows = pg_num_rows($result);

	      echo $rows . " row(s) returned.
";
	      ?>

	      The above example will output:

	      1 row(s) returned.

SEE ALSO

       pg_num_fields(3), pg_affected_rows(3).

PHP Documentation Group 													    PG_NUM_ROWS(3)