08-28-2008
Extracting lines and saving - awk
Hi All,
I am trying to extract lines bsed on pattern matching../mp straight-flow/
Extracted output should be saved in meta_string , but the code is not working in that manner,saving repeated lines. can anyone please suggest where am i going wrong.
/mp straight-flow/ {
start=index($0,"straight-flow");
if ($2=="straight-flow") meta_string=(meta_string "\n" substr($0,start));
print(meta_string);
mp straight-flow Transformation_records_to_fit_COBOL_Requirement.Generate_DAG_Counts.Flow_24 Transformation_records_to_fit_CO
BOL_Requirement.Generate_DAG_Counts.Repl_Produce_3_flows.out Transformation_records_to_fit_COBOL_Requirement.Generate_DAG_Cou
nts.Rlup_Count_DAG_Occurence.in -metadata metadata4
mp straight-flow Transformation_records_to_fit_COBOL_Requirement.Generate_DAG_Counts.Flow_25 Transformation_records_to_fit_CO
BOL_Requirement.Generate_DAG_Counts.Repl_Produce_3_flows.out Transformation_records_to_fit_COBOL_Requirement.Generate_DAG_Cou
nts.Jn_Add_DAG_Count_to_Incoming_Records.in.in0 -metadata metadata4 -buffer
mp straight-flow Transformation_records_to_fit_COBOL_Requirement.Generate_DAG_Counts.Flow_23 Transformation_records_to_fit_CO
BOL_Requirement.Generate_DAG_Counts.Rlup_Count_DAG_Occurence.out Transformation_records_to_fit_COBOL_Requirement.Generate_DAG
_Counts.Jn_Add_DAG_Count_to_Incoming_Records.in.in1 -metadata metadata5 -buffer
Regards,
Madhavi
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JOIN(1) General Commands Manual JOIN(1)
NAME
join - relational database operator
SYNOPSIS
join [-an] [-e s] [-o list] [-tc] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If file1 is `-', the standard
input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Fields are normally separated by blank, tab or newline. In this case, multiple separators count as one, and leading separators are dis-
carded.
These options are recognized:
-an In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-e s Replace empty output fields by string s.
-o list
Each output line comprises the fields specified in list, each element of which has the form n.m, where n is a file number and m is a
field number.
-tc Use character c as a separator (tab character). Every appearance of c in a line is significant.
SEE ALSO
sort(1), comm(1), awk(1).
BUGS
With default field separation, the collating sequence is that of sort -b; with -t, the sequence is that of a plain sort.
The conventions of join, sort, comm, uniq, look and awk(1) are wildly incongruous.
7th Edition April 29, 1985 JOIN(1)