palm-datebook-reminders: 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/palm-datebook-reminders - from package: chiark-scripts

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

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