teamdctl: 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/teamdctl - from package: libteam-utils

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

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