sdcdb: 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/sdcdb - from package: cc1111
/usr/bin/sdcdb - from package: sdcc-ucsim

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

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