colverify: 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/colverify - from package: argyll

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

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