04-14-2009
Need Help with Joining Command or AWK
Hello. I have 2 files.
File 1:
1692 @00000000201@00000205@20090402@000015000
1692 @00000000202@00000206@20090402@000010000
263157760@00000000401@00000201@20090402@000056250
510584583@00000000300@00000207@20090402@000030000
571764164@00000000100@00000128@20090402@000000500
571764164@00000000202@00000147@20090402@000005000
770000464@00000000100@00000125@20090402@000005000
770000464@00000000201@00000000@ @000005000
File 2:
1692 @RONALD F. SZOPA, DMD
004408365@STRESS REDUCTION SYSTEMS
010555926@B. FAREID, DDS A PROFESSIONAL CORP.
571764164@METABOLIC IMAGING MEDICAL GROUP
033464787@DAVID YUNG NING LI
770000464@COMPREHENSIVE MEDICAL G
I tried to do a join however it isn't working. I am trying to match the first field of the first file to the first field of the 2nd file. If that condition match then produce all record from both file 1 and file 2.
Tried
awk -F\@ 'NR == FNR {i _[$1,$2]; next } ($1,$2) in _' file1 file2
doesn't work
Any help is much appreciated. Thank you.
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LEARN ABOUT OPENDARWIN
join
JOIN(1) BSD General Commands Manual JOIN(1)
NAME
join -- relational database operator
SYNOPSIS
join [-a file_number | -v file_number] [-e string] [-o list] [-t char] [-1 field] [-2 field] file1 file2
DESCRIPTION
The join utility performs an ``equality join'' on the specified files and writes the result to the standard output. The ``join field'' is
the field in each file by which the files are compared. The first field in each line is used by default. There is one line in the output
for each pair of lines in file1 and file2 which have identical join fields. Each output line consists of the join field, the remaining
fields from file1 and then the remaining fields from file2.
The default field separators are tab and space characters. In this case, multiple tabs and spaces count as a single field separator, and
leading tabs and spaces are ignored. The default output field separator is a single space character.
Many of the options use file and field numbers. Both file numbers and field numbers are 1 based, i.e. the first file on the command line is
file number 1 and the first field is field number 1. The following options are available:
-a file_number
In addition to the default output, produce a line for each unpairable line in file file_number.
-e string
Replace empty output fields with string.
-o list
The -o option specifies the fields that will be output from each file for each line with matching join fields. Each element of list
has the either the form 'file_number.field', where file_number is a file number and field is a field number, or the form '0' (zero),
representing the join field. The elements of list must be either comma (``,'') or whitespace separated. (The latter requires quot-
ing to protect it from the shell, or, a simpler approach is to use multiple -o options.)
-t char
Use character char as a field delimiter for both input and output. Every occurrence of char in a line is significant.
-v file_number
Do not display the default output, but display a line for each unpairable line in file file_number. The options -v 1 and -v 2 may be
specified at the same time.
-1 field
Join on the field'th field of file 1.
-2 field
Join on the field'th field of file 2.
When the default field delimiter characters are used, the files to be joined should be ordered in the collating sequence of sort(1), using
the -b option, on the fields on which they are to be joined, otherwise join may not report all field matches. When the field delimiter char-
acters are specified by the -t option, the collating sequence should be the same as sort(1) without the -b option.
If one of the arguments file1 or file2 is ``-'', the standard input is used.
DIAGNOSTICS
The join utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
For compatibility with historic versions of join, the following options are available:
-a In addition to the default output, produce a line for each unpairable line in both file 1 and file 2.
-j1 field
Join on the field'th field of file 1.
-j2 field
Join on the field'th field of file 2.
-j field
Join on the field'th field of both file 1 and file 2.
-o list ...
Historical implementations of join permitted multiple arguments to the -o option. These arguments were of the form
'file_number.field_number' as described for the current -o option. This has obvious difficulties in the presence of files named
'1.2'.
These options are available only so historic shellscripts don't require modification and should not be used.
STANDARDS
The join command conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
SEE ALSO
awk(1), comm(1), paste(1), sort(1), uniq(1)
BSD
April 18, 2002 BSD