zimpl: 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/zimpl - from package: zimpl

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

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