trove-taskmanager: 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/trove-taskmanager - from package: python-trove

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

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