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Top Forums Shell Programming and Scripting Big pattern file matching within another pattern file in awk or shell Post 302960839 by RudiC on Friday 20th of November 2015 04:55:41 AM
Old 11-20-2015
Some comments on top of what Don Cragun said:
awk -F "," keys.txt '{print $1}' can't possibly work (reverse order of arguments) and is superfluous - you could simply read IFS="," key_ REST; ... < keys.txt
grep -v ",-1$" is pointless as (at least in the samples given) there's no line ending in "-1"
And, for each line in keys.txt times each matching line in file1.txt, you run 10 processes to extract a few fields - no surprise that is slow.
 

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c-icap-mkbdb(8) 					      System Manager's Manual						   c-icap-mkbdb(8)

NAME
c-icap-mkbdb - simple ICAP clientutility to create Berkeley DB lookup tables SYNOPSIS
c-icap-mkbdb [ -d debug_level ] [ -i file.txt ] [ -o file.db ] [ -t string|int|ip ] [ -v string|int|ip ] [ --dump ] DESCRIPTION
c-icap-mkbdb utility can be used to create Berkeley DB databases which can be used as lookup tables by the c-icap server. OPTIONS
-d debug_level The debug level -i file.txt The file contains the data (required). The line format of this file must be: key: value1, value2, .... -o file.db The database to be created -t string|int|ip The type of the key. Select string for string keys, int for integer keys or ip for using IP addresses as keys. The "string" is the default. -v string|int|ip The type of the values. The "string" is the default. --dump Do not update the database just dump it to the screen. EXAMPLES
c-icap-mkbdb -o keys -i keys.txt It builds the keys Berkeley DB database, using string type for keys and values. c-icap-mkbdb -o keys --dump Dump the contents of the keys database SEE ALSO
c-icap(8) c-icap-client(8) c-icap-stretch(8) c-icap-config(8) c-icap-libicapapi-config(8) AUTHOR
Tsantilas Christos c_icap 0.1.6 c-icap-mkbdb(8)
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