smbldap-groupmod: 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/sbin/smbldap-groupmod - from package: smbldap-tools

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

On Debian possible default full paths are:

/usr/sbin/smbldap-groupmod - from package: smbldap-tools

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

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