pastel.lut: 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/lib/eso-midas/13SEP/systab/bin/pastel.lut - from package: eso-midas

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

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