bsspadmin: 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/bsspadmin - from package: ion

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