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Full Discussion: distinct values of all the fields
Top Forums UNIX for Dummies Questions & Answers distinct values of all the fields Post 302461953 by vukkusila on Tuesday 12th of October 2010 08:44:36 PM
Old 10-12-2010
distinct values of all the fields
I am a beginner to scripting, please help me in this regard.

How do I create a script that provides a count of distinct values of all the fields in the pipe delimited file ? I have 20 different files with multiple columns in each file. I needed to write a generic script where I give the number of columns as a parameter to the script or the script by itself should be able to recognize the number of columns in the file based on the delimiter. The script needs to generate the output as below.

Sample data

Field1|Field2|Field3|Field4
AAA|BBB|CCC|DDD
111|222|333|777
AAA|EEE|ZZZ|EEE
111|555|333|444
AAA|EEE|CCC|DDD
111|222|555|444

For the above file, the result I am looking for would be:

Field1
AAA(3)
111(3)

Field2
BBB(1)
222(2)
EEE(2)
555(1)

Field3
ccc(2)
333(2)
zzz(1)
555(1)

Field4
DDD(2)
777(1)
EEE(1)
444(2)

Thank you in advance for your assistance.
 

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LEARN ABOUT DEBIAN

gd_nfields

gd_nfields(3)							      GETDATA							     gd_nfields(3)

NAME

       gd_nfields -- report the number of fields in a dirfile

SYNOPSIS

       #include <getdata.h>

       unsigned int gd_nfields(DIRFILE *dirfile);

DESCRIPTION

       The gd_nfields() function queries a dirfile(5) database specified by dirfile and returns the number of fields defined in the database.  No-
       tably, this count does not include /META fields.

       The dirfile argument must point to a valid DIRFILE object previously created by a call to gd_open(3).

RETURN VALUE

       Upon successful completion, gd_nfields() returns the number of defined fields in the dirfile.  On error,  it  returns  zero  and  sets  the
       dirfile error to a non-zero error value.  Possible error values are:

       GD_E_BAD_DIRFILE
	       The supplied dirfile was invalid.

       The  dirfile error may be retrieved by calling gd_error(3).  A descriptive error string for the last error encountered can be obtained from
       a call to gd_error_string(3).

SEE ALSO

       dirfile(5), gd_open(3), gd_error(3), gd_error_string(3), gd_field_list(3), gd_nfields_by_type(3), gd_nmfields(3), gd_nvectors(3)

Version 0.7.0							   16 July 2010 						     gd_nfields(3)
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