ibid-db: 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/ibid-db - from package: ibid

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

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