ipmicmd: 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/ipmicmd - from package: OpenIPMI

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

On Debian possible default full paths are:

/usr/bin/ipmicmd - from package: OpenIPMI

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

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