cmbuild: command not found

Have You tried accessing the binary with the full path?

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/cmbuild - from package: infernal

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