fsdump: 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/fsdump - from package: python-zodb
/usr/lib/zope2.13/bin/fsdump - from package: zope2.13

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

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