flists: 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/mh/flists - from package: nmh

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

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