dumppsf: 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/dumppsf - from package: console-cyrillic

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

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