ibid-pb-client: 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/ibid-pb-client - from package: ibid

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