pspp-dump-sav: 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/pspp-dump-sav - from package: pspp

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