setupnash2: 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/setupnash2 - from package: lrslib

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

Error in other languages:
setupnash2: bevel nie gevind nie
setupnash2: comandă negăsită
setupnash2: comando não encontrado
setupnash2: commande introuvable
setupnash2: command not found
setupnash2: käsku ei ole
setupnash2: không tìm thấy lệnh
setupnash2: komanda nerasta
setupnash2: Kommando nicht gefunden.
setupnash2: kommandot finns inte
setupnash2: komut yok
setupnash2: nie znaleziono polecenia
setupnash2: níor aimsíodh an t-ordú
setupnash2: no se encontró la orden
setupnash2: no s'ha trobat l'ordre
setupnash2: opdracht niet gevonden
setupnash2: parancs nem található
setupnash2: perintah tidak ditemukan
setupnash2: príkaz nenájdený
setupnash2: příkaz nenalezen
setupnash2: команда не найдена
setupnash2: командата не е открита
setupnash2: 命令找不到
setupnash2: コマンドが見つかりません