dispcalGUI-profile-info: 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/dispcalGUI-profile-info - from package: dispcalgui

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

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