applycal: command not found

Have You tried accessing the binary with the full path?

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/applycal - from package: argyll

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