sick_lms_config: 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/sick_lms_config - from package: sicktoolbox

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

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