schedtool: 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/schedtool - from package: schedtool

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

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