colormgr: 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/colormgr - from package: colord

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