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Full Discussion: Challenging Awk array problem
Top Forums Shell Programming and Scripting Challenging Awk array problem Post 302423795 by polsum on Saturday 22nd of May 2010 12:25:24 PM
Old 05-22-2010
Quote:
Originally Posted by alister
Here's a simpler approach that only uses AWK (and which I should've suggested from the beginning):
Code:
awk '{chr=$6; min=$7; max=$8; s=$11" "$12" "$13; getline < f2; if (chr==$4 && $5>=min && $5<=max) print $0, s;}' f2='file2' file1

You can change what's in red to suit your needs, but leave the rest as is.

Changing the quotes as you say you did completely changes the meaning of the code; using double quotes at the outer level causes every instance of a dollar sign folowed by a digit to be expanded by the shell instead of being passed literally to AWK for its use. AWK will never see them. Also, you are altering what is quoted and what is not quoted by creating unintended quoted strings with the double quotes that were embedded in the single quotes which were removed.

Alister
Alister, thanks for the code. But when I run it, it gives me an error message "the system can not find the file specified" even though the files are in the installation directory.

Also, while running other scripts I always use double quotes and it works fine. Single quotes doesn't work in my windows laptop. They work fine in my ubuntu office computer though.

It might be easier to run this in a script with -f option, but then the code might have to be changed a bit at the end so that the files will be given as in put in the command prompt. Here file 1 can be removed from the script and put in the command prompt but not sure how file2 should be accommodated.
Last edited by polsum; 05-22-2010 at 01:50 PM..
 

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LEARN ABOUT CENTOS

tcamgr

TCATEST(3)							   Tokyo Cabinet							TCATEST(3)

NAME

       tcamgr - the command line utility of the abstract database API

DESCRIPTION

       The command `tcamgr' is a utility for test and debugging of the abstract database API and its applications.  `name' specifies the name of a
       database.  `key' specifies the key of a record.	`value' specifies the value of	a  record.   `params'  specifies  the  tuning  parameters.
       `func'  specifies  the  name  of  a function.  `arg' specifies the arguments of the function.  `dest' specifies the path of the destination
       file.

	      tcamgr create name
		     Create a database file.
	      tcamgr inform name
		     Print miscellaneous information to the standard output.
	      tcamgr put [-sx] [-sep chr] [-dk|-dc|-dai|-dad] name key value
		     Store a record.
	      tcamgr out [-sx] [-sep chr] name key
		     Remove a record.
	      tcamgr get [-sx] [-sep chr] [-px] [-pz] name key
		     Print the value of a record.
	      tcamgr list [-sep chr] [-m num] [-pv] [-px] [-fm str] name
		     Print keys of all records, separated by line feeds.
	      tcamgr optimize name params
		     Optimize a database file.
	      tcamgr misc [-sx] [-sep chr] [-px] name func [arg...]
		     Call a versatile function for miscellaneous operations.
	      tcamgr map [-fm str] name dest
		     Map records into another B+ tree database.
	      tcamgr version
		     Print the version information of Tokyo Cabinet.

       Options feature the following.

	      -sx : the input data is evaluated as a hexadecimal data string.
	      -sep chr : specify the separator of the input data.
	      -dk : use the function `tcadbputkeep' instead of `tcadbput'.
	      -dc : use the function `tcadbputcat' instead of `tcadbput'.
	      -dai : use the function `tcadbaddint' instead of `tcadbput'.
	      -dad : use the function `tcadbadddouble' instead of `tcadbput'.
	      -px : the output data is converted into a hexadecimal data string.
	      -pz : do not append line feed at the end of the output.
	      -m num : specify the maximum number of the output.
	      -pv : print values of records also.
	      -fm str : specify the prefix of keys.

       This command returns 0 on success, another on failure.

SEE ALSO

       tcatest(1), tcamttest(1), tcadb(3), tokyocabinet(3)

Man Page							    2012-08-18								TCATEST(3)
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