teamnl: 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/teamnl - from package: libteam-utils

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

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