svsematest: 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

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/svsematest - from package: rt-tests

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