cmtime: 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/cmtime - from package: librdmacm-utils

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

On Debian possible default full paths are:

/usr/bin/cmtime - from package: rdmacm-utils

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

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