colormap: 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/colormap - from package: liballegro4-dev

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

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