Shell Programming and Scripting

#CountryName|CountryRegion|CountryCode-3|CountryCode-2
Aruba|AMS|ABW|AW
Anguilla|AMS|AIA|AI
Netherlands Antilles|AMS|ANT|AN

while IFS='|' read -r f1 f2 f3 f4
do
  if [ $f3 = $country_code ]; then
    CountryName=$f1
    CountryRegion=$f2
    CountryCode2=$f4
  fi
done < "$input"

#! /bin/ksh

function pGetCountryDetails
{
typeset f1=""
typeset f2=""
typeset f3=""
typeset f4=""
typeset country_code="$1"

while IFS='|' read -r f1 f2 f3 f4 ; do
     if [ $f3 = $country_code ] ; then
          CountryName=$f1
          CountryRegion=$f2
          CountryCode2=$f4
          return 0
     fi
done < "$input"

return 1
}


# main()

[... get some country_code....]

if ! pGetCountryDetails "$country_code" ; then
     print -u2 - "country code $country_code not found in file"
else
     print - "Country Code is: $country_code"
     print - "CountryName=$CountryName"
     print - "CountryRegion=$CountryRegion"
     print - "CountryCode2=$CountryCode2"
fi
[.... etc. ....]

grep -n AIA input.txt | cut -d ':' -f1 | xargs -I % awk -F '|' 'NR==% {print "country region is "$2 " country name is " $1}'  input.txt

while IFS=| read f1 f2 f3 f4
do
  mkdir $f3
  echo $f1 >$f3/name
  echo $f4 >$f3/short
  echo $f2 >$f3/region
done

ISO=CAN
countryname=`cat $ISO/name`

typeset -A CNAME CREG CCOD2
{ read
  while IFS='|' read -r f1 f2 f3 f4
    do  CNAME[$f3]=$f1
        CREG[$f3]=$f2
        CCOD2[$f3]=$f4
    done
} < "$input"

for i in ${!CNAME[@]}; do echo $i: ${CNAME["$i"]}, ${CREG["$i"]}, ${CCOD2["$i"]}; done
ABW: Aruba, AMS, AW
AIA: Anguilla, AMS, AI
ANT: Netherlands Antilles, AMS, AN