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Full Discussion: Vlookup multiple file and awk
Top Forums Shell Programming and Scripting Vlookup multiple file and awk Post 303027217 by baris35 on Tuesday 11th of December 2018 09:59:39 AM
Old 12-11-2018
Vlookup multiple file and awk
Hello Folks,
What I wish to do is:
If first column matches in main and new file, then
paste $COL2 into output file. Something like vlookup. Please see also bold text in expected output.

mainfile
Code:
11
22
33
44
55
66
77
88
99
100
101
102

newfile1
Code:
11 MONDAY24
22 WEDNESDAY42
33 THURSDAY52
44 FRIDAY62
55 TUESDAY72
66 FRIDAY99
51 WHAT01
77 SATURDAY22
88 SUNDAY22

newfile2
Code:
11 MONDAY
22 WEDNESDAY
33 THURSDAY
44 FRIDAY
55 TUESDAY
66 FRIDAY
51 WHAT
77 SATURDAY
88 SUNDAY
101 MONTAG
109 DIENSTAG
115 MITTWOCH
55 DONNERSTAG

Expected output:
Code:
11 MONDAY24 MONDAY
22 WEDNESDAY42 WEDNESDAY
33 THURSDAY52 THURSDAY
44 FRIDAY62 FRIDAY
55 TUESDAY72 TUESDAY DONNERSTAG
66 FRIDAY99 FRIDAY
77 SATURDAY22 SATURDAY
88 SUNDAY22 SUNDAY
99
100
101 MONTAG
102


I run awk code with two steps:
Code:
awk 'NR==FNR {m[$1]=$1"\t"$2; next} {$1=m[$1]; print}' mainfile newfile1 > output
awk 'NR==FNR {m[$1]=$1"\t"$2; next} {$1=m[$1]; print}' mainfile newfile2 >> output

This one does not works as expected.
Could you please let me know how to solve this?
Awk is not a must. Easily understandable solutions are welcome.

Thanks
Boris
Last edited by baris35; 12-13-2018 at 10:12 PM..
 

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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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