kambdb_recover: 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/kambdb_recover - from package: kamailio-berkeley-bin

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

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