sispmctl: 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/sispmctl - from package: sispmctl

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

On Debian possible default full paths are:

/usr/bin/sispmctl - from package: sispmctl

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

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