openchange_provision: 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/sbin/openchange_provision - from package: openchangeserver

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

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