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Top Forums Shell Programming and Scripting sorting csv file based on column selected Post 302331153 by kshji on Saturday 4th of July 2009 02:11:30 AM
Old 07-04-2009
Using awk rule idea.
Code:
ff=file.txt

sort -t";" -k3 -k2 $ff | \
   awk -F";" -v keyfld=3 '
      # - next key value
      $keyfld != prevkey { 
                print toupper($keyfld) 
                }
      # - every line
                { 
                print $0
                prevkey=$keyfld
                }
   '

Or using ksh
Code:
prevkey=""
oifs="$IFS"
typeset -u key
sort -t";" -k3 -k2 $ff | while read line
do
        IFS=";"
        set -A flds -- $line    # to array, 1st index 0 
        IFS="$oifs"
        key=${flds[2]}
        [ "$prevkey" != "$key" ] && print "$key"
        print "$line"
        prevkey=$key
done

 

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GNUNET-RSA(1)						      General Commands Manual						     GNUNET-RSA(1)

NAME
gnunet-rsa - manipulate GNUnet RSA key files SYNOPSIS
gnunet-rsa [options]FILENAME DESCRIPTION
gnunet-rsa can be used to create an RSA private key and to print the corresponding public key. You must specify a filename containing an RSA private key in GNUnet format as an argument. If the file does not exist, gnunet-rsa will create a key. This may then take a while. If the option -p is given, the corresponding public key will be printed to the console. OPTIONS
-p, --print-public-key Print the corresponding public key to stdout. -P, --print-peer-identity Print the corresponding peer identity (hash of the public key) to stdout. This hash is used for the name of peers. -s, --print-short-identity Print the corresponding short hash (256-bit hash of the public key) to stdout. This hash is used for names in the zkey zone. -c FILENAME, --config=FILENAME Use the configuration file FILENAME. -h, --help Print short help on options. -L LOGLEVEL, --loglevel=LOGLEVEL Use LOGLEVEL for logging. Valid values are DEBUG, INFO, WARNING and ERROR. -v, --version Print GNUnet version number. BUGS
Report bugs by using Mantis <https://gnunet.org/bugs/> or by sending electronic mail to <gnunet-developers@gnu.org> GNUnet Mar 15, 2012 GNUNET-RSA(1)
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