sdcc-sdldgb: 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 CentOS possible default full paths are:

/usr/bin/sdcc-sdldgb - from package: sdcc

You may install the required package with command yum install {package}

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