Shell script to convert a VCard file to a CSV compatible to import in Outlook

vcard2outlook.sh

#!/bin/zsh

# Shell script to convert a VCard to a CSV to import in Outlook
#
# Requirements: Zsh, GNU AWK and unix2dos
#
# Usage:
# cat Contacts.vcf | ./vcard2outlook.sh | unix2dos > Contacts.csv
#
#  * Copyright (C) 2021 Dyne.org foundation
#  * designed, written and maintained by Denis Roio <jaromil@dyne.org>
#  * 
#  * This program is free software: you can redistribute it and/or modify
#  * it under the terms of the GNU Affero General Public License v3.0
#  * 
#  * This program is distributed in the hope that it will be useful,
#  * but WITHOUT ANY WARRANTY; without even the implied warranty of
#  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  * GNU Affero General Public License for more details.
#  * 
#  * Along with this program you should have received a copy of the
#  * GNU Affero General Public License v3.0
#  * If not, see http://www.gnu.org/licenses/agpl.txt


tmp=`mktemp`
cat | awk '
BEGIN { c=0; nick=""; name=""; email=""; }
/^NICKNAME:/ { gsub(/\015/,""); nick=$0 }
/^FN:/       { gsub(/\015/,""); name=$0 }
/^EMAIL/     { gsub(/\015/,""); email=$0 }
/^END:VCARD/ {
    if(email != "") {
      c = c + 1
      split(nick,k,":")
      print k[2]
      split(name,n,":")
      print n[2]
      split(email,e,":")
      print e[2]
      print "# " c
    }
    nick=""
    email=""
    name=""
}
' > $tmp

cat << EOF
First Name,Last Name,E-mail Address,E-mail Display Name
EOF
for i in "${(f)$(cat $tmp)}"; do
    if [[ "$nick" = "" ]]; then nick="$i"; continue; fi
    if [[ "$name" = "" ]]; then name="$i"; continue; fi
    if [[ "$email" = "" ]]; then email="$i"; continue; fi
    if [[ "${i[1]}" == "#" ]]; then
        if [[ "$nick" == "$email" ]]; then nick=""; fi
        if [[ "$name" == "$email" ]]; then name=""; fi
        print -- "${nick},${name},${email},$nick $name"
        nick=""; name=""; email=""
        continue
    fi
done

rm -f $tmp