My aim is to take numbers from file t1 (contains more than 300k records) and search them in 40 t2 files while each file contains 1.8M records.
If number in t1 is in t2 files than I take column 1 and 18th of the found row and save it in separate file. How can I do this efficiently and quickly?
---------- Post updated at 07:37 AM ---------- Previous update was at 07:35 AM ----------
Quote:
Originally Posted by elixir_sinari
Assuming that I got your requirement right, try:
elixir_sinari thanks for your response. Your script gives following error upon execution.
awk 'FNR==NR{a[$1];next}$1 in a{print $1,$18}' t1 FS=, t2* > testunix.log
awk: syntax error near line 1
awk: bailing out near line 1
pwd
/dump/20130426_DAILY_SDP/parallelProcessing
Neo,
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Discussion started by: Neo
0 Replies
LEARN ABOUT DEBIAN
igawk
IGAWK(1) Utility Commands IGAWK(1)NAME
igawk - gawk with include files
SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ...
igawk [ all gawk options ] [ -- ] program-text file ...
DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).
AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like
@include getopt.awk
in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.
OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports.
EXAMPLES
cat << EOF > test.awk
@include getopt.awk
BEGIN {
while (getopt(ARGC, ARGV, "am:q") != -1)
...
}
EOF
igawk -f test.awk
SEE ALSO gawk(1)
Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.
AUTHOR
Arnold Robbins (arnold@skeeve.com).
Free Software Foundation Nov 3 1999 IGAWK(1)