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Top Forums Shell Programming and Scripting awk or grep to search one column and output the other Post 302834821 by Scott on Saturday 20th of July 2013 04:38:00 AM
Old 07-20-2013
$ signifies a command prompt, it's not part of the code.

You don't need cat ... | while.

Just
Code:
awk 'NR==FNR{A[$0]=1; next} A[$1] {print $2}' fileA fileB > fileC

A is just a variable, call it what you want:
Code:
awk 'NR==FNR{row[$0]=1; next} row[$1] {print $2}' fileA fileB > fileC

=1 is just to record that the value of the record ($0) from the first file (FR==FNR) has been stored. This is used later (A[$1]) to test against the first field of the second file, in which case $2 from that file is displayed.
 

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DBASE_GET_RECORD_WITH_NAMES(3)						 1					    DBASE_GET_RECORD_WITH_NAMES(3)

dbase_get_record_with_names - Gets a record from a database as an associative array

SYNOPSIS
array dbase_get_record_with_names (int $dbase_identifier, int $record_number) DESCRIPTION
Gets a record from a dBase database as an associative array. PARAMETERS
o $dbase_identifier - The database link identifier, returned by dbase_open(3) or dbase_create(3). o $record_number - The index of the record. RETURN VALUES
An associative array with the record. This will also include a key named deleted which is set to 1 if the record has been marked for dele- tion (see dbase_delete_record(3)). Each field is converted to the appropriate PHP type, except: o Dates are left as strings. o Integers that would have caused an overflow (> 32 bits) are returned as strings. On error, dbase_get_record_with_names(3) will return FALSE. EXAMPLES
Example #1 Listing all the registered members in the database <?php // open in read-only mode $db = dbase_open('/tmp/test.dbf', 0); if ($db) { $record_numbers = dbase_numrecords($db); for ($i = 1; $i <= $record_numbers; $i++) { $row = dbase_get_record_with_names($db, $i); if ($row['ismember'] == 1) { echo "Member #$i: " . trim($row['name']) . " "; } } } ?> SEE ALSO
dbase_get_record(3). PHP Documentation Group DBASE_GET_RECORD_WITH_NAMES(3)
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