sbai: 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/lib/cmtk/bin/sbai - from package: cmtk

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