munchlist: 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/munchlist - from package: ispell

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

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