extractttag: 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/extractttag - from package: argyll

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

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