sensord: 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/sensord - from package: lm_sensors-sensord

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

On Debian possible default full paths are:

/usr/sbin/sensord - from package: sensord

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

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