tinywm: 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/tinywm - from package: tinywm

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

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