ibccconfig: 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/sbin/ibccconfig - from package: infiniband-diags

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

On Debian possible default full paths are:

/usr/sbin/ibccconfig - from package: infiniband-diags

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

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