sems-sbc-get-regex-map-names: 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

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/sems-sbc-get-regex-map-names - from package: sems

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