cgget: 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:

/bin/cgget - from package: libcgroup

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

On Debian possible default full paths are:

/usr/bin/cgget - from package: cgroup-tools

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

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