cherrytree: 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/cherrytree - from package: cherrytree

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

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