Etcolors: 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/Etcolors - from package: eterm

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

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