2vcard: 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/2vcard - from package: 2vcard

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

Error in other languages:
2vcard: bevel nie gevind nie
2vcard: comandă negăsită
2vcard: comando não encontrado
2vcard: commande introuvable
2vcard: command not found
2vcard: käsku ei ole
2vcard: không tìm thấy lệnh
2vcard: komanda nerasta
2vcard: Kommando nicht gefunden.
2vcard: kommandot finns inte
2vcard: komut yok
2vcard: nie znaleziono polecenia
2vcard: níor aimsíodh an t-ordú
2vcard: no se encontró la orden
2vcard: no s'ha trobat l'ordre
2vcard: opdracht niet gevonden
2vcard: parancs nem található
2vcard: perintah tidak ditemukan
2vcard: príkaz nenájdený
2vcard: příkaz nenalezen
2vcard: команда не найдена
2vcard: командата не е открита
2vcard: 命令找不到
2vcard: コマンドが見つかりません