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Full Discussion: use awk to read randomly located columns in an excel file
Top Forums Shell Programming and Scripting use awk to read randomly located columns in an excel file Post 302223434 by aigles on Sunday 10th of August 2008 07:47:24 AM
Old 08-10-2008
Code:
NR==1 {                            # Select first line = header 
   for (i=1; i<=NF; i++)           #    For every field i (NF is last field# ) 
      col_fields[$i] = i;          #       Memorize field# for column name ($i)
}	  

{                                  # Select every line             
   out = "";                       #    Initialize out valriable (used for line diplay) 
   for (i=1; i<=cols_count; i++) { #    For every selected columns
      col_hdr = cols[i];           #       get column name
      out = (i>1 ? out OFS : "") (col_fields[col_hdr] ? $(col_fields[col_hdr]) : "?" );
	                            #       Concatenate column value $(col_fields[col_hdr]
                                   #       to out variable with Output Field Separator 
   }                               #
   print out;                      #    Print columns
}

 

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LEARN ABOUT LINUX

shtool-table

SHTOOL-TABLE.TMP(1)					      GNU Portable Shell Tool					       SHTOOL-TABLE.TMP(1)

NAME

       shtool-table - GNU shtool pretty-print a field-separated list

SYNOPSIS

       shtool table [-F|--field-sep sep] [-w|--width width] [-c|--columns cols] [-s|--strip strip] strsepstr...

DESCRIPTION

       This pretty-prints a list of strings as a table.

OPTIONS

       The following command line options are available.

       -F, --field-sep sep
	   Separate columns using sep. Default is ":".

       -w, --width width
	   Width of each column. Default is 15 characters.

       -c, --columns cols
	   Number of columns. Default is 3.

       -s, --strip strip
	   Strip off any characters past strip. Default is 79.

EXAMPLE

	#   shell script
	shtool table -F , -w 5 -c 4 "1,2,3,4,5,6,7,8,9,10,11,12"

HISTORY

       The GNU shtool table command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 1999 for GNU shtool.

SEE ALSO

       shtool(1), tr(1), fmt(1), sh(1), awk(1), sed(1).

18-Jul-2008							   shtool 2.0.8 					       SHTOOL-TABLE.TMP(1)
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