cimsub: 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
/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/cimsub - from package: tog-pegasus

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