11-15-2008
filtering one file based on results from other
Can anybody help me with writing a script for the data that I want to use from one file based on the data from another file. I have file1 in this form;
(the first field represents a well name and the second field represents the depth of interest)
FILE1
--------
DATA_35_0 -4065.517
DATA_48_0 -4043.609
............... .............
............... .............
The second file is of the form;
FILE2
-------
DATA_35_0 392409.2 2966457. 25.00000
DATA_35_0 392408.6 2966463. -2374.779
DATA_35_0 392408.4 2966463. -2474.773
DATA_35_0 392408.2 2966464. -2574.767
DATA_35_0 392408.2 2966464. -2674.762
DATA_35_0 392408.3 2966464. -2774.757
DATA_35_0 392408.5 2966464. -2874.752
DATA_35_0 392410.7 2966464. -3374.687
DATA_35_0 392411.2 2966463. -3474.669
DATA_35_0 392411.6 2966463. -3574.651
DATA_35_0 392412.1 2966462. -3674.633
DATA_35_0 392412.7 2966462. -3774.612
DATA_35_0 392413.2 2966462. -3874.585
DATA_35_0 392413.9 2966461. -3974.552
DATA_35_0 392414.6 2966461. -4074.514
DATA_35_0 392415.3 2966460. -4174.471
DATA_35_0 392416.1 2966460. -4274.429
DATA_35_0 392416.9 2966460. -4374.381
DATA_35_0 392417.8 2966459. -4474.324
DATA_35_0 392418.7 2966458. -4574.263
DATA_35_0 392419.5 2966458. -4674.216
............... ............. ............ ...............
I want to filter the file2 in a way that it only puts out the data where column 4 in the file2 is less than or equal to the second column in file 1. Thus in if file1 only had one record i.e. DATA_35_0 -4065.517, then I want the file2 to be filtered so that it it becomes (based on column 4) as follows;
DATA_35_0 392414.6 2966461. -4074.514
DATA_35_0 392415.3 2966460. -4174.471
DATA_35_0 392416.1 2966460. -4274.429
DATA_35_0 392416.9 2966460. -4374.381
DATA_35_0 392417.8 2966459. -4474.324
DATA_35_0 392418.7 2966458. -4574.263
DATA_35_0 392419.5 2966458. -4674.216
i.e the column 4 (and the coresponding other columns) are output wherever the column 4 is lessthan or equal to -4065.517
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COMM(1) User Commands COMM(1)
NAME
comm - compare two sorted files line by line
SYNOPSIS
comm [OPTION]... FILE1 FILE2
DESCRIPTION
Compare sorted files FILE1 and FILE2 line by line.
With no options, produce three-column output. Column one contains lines unique to FILE1, column two contains lines unique to FILE2, and
column three contains lines common to both files.
-1 suppress column 1 (lines unique to FILE1)
-2 suppress column 2 (lines unique to FILE2)
-3 suppress column 3 (lines that appear in both files)
--check-order
check that the input is correctly sorted, even if all input lines are pairable
--nocheck-order
do not check that the input is correctly sorted
--output-delimiter=STR
separate columns with STR
--help display this help and exit
--version
output version information and exit
Note, comparisons honor the rules specified by `LC_COLLATE'.
EXAMPLES
comm -12 file1 file2
Print only lines present in both file1 and file2.
comm -3
file1 file2 Print lines in file1 not in file2, and vice versa.
AUTHOR
Written by Richard M. Stallman and David MacKenzie.
REPORTING BUGS
Report comm bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report comm translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
join(1), uniq(1)
The full documentation for comm is maintained as a Texinfo manual. If the info and comm programs are properly installed at your site, the
command
info coreutils 'comm invocation'
should give you access to the complete manual.
GNU coreutils 8.5 February 2011 COMM(1)