gmidimonitor: 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 Debian possible default full paths are:

/usr/bin/gmidimonitor - from package: gmidimonitor

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

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