adr2vcf: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/adr2vcf - from package: scmxx

You may install the required package with command apt-get install {package}

Error in other languages:
adr2vcf: bevel nie gevind nie
adr2vcf: comandă negăsită
adr2vcf: comando não encontrado
adr2vcf: commande introuvable
adr2vcf: command not found
adr2vcf: käsku ei ole
adr2vcf: không tìm thấy lệnh
adr2vcf: komanda nerasta
adr2vcf: Kommando nicht gefunden.
adr2vcf: kommandot finns inte
adr2vcf: komut yok
adr2vcf: nie znaleziono polecenia
adr2vcf: níor aimsíodh an t-ordú
adr2vcf: no se encontró la orden
adr2vcf: no s'ha trobat l'ordre
adr2vcf: opdracht niet gevonden
adr2vcf: parancs nem található
adr2vcf: perintah tidak ditemukan
adr2vcf: príkaz nenájdený
adr2vcf: příkaz nenalezen
adr2vcf: команда не найдена
adr2vcf: командата не е открита
adr2vcf: 命令找不到
adr2vcf: コマンドが見つかりません