openipmish: 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/openipmish - from package: OpenIPMI

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

On Debian possible default full paths are:

/usr/bin/openipmish - from package: OpenIPMI

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