lstopo-no-graphics: 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/lstopo-no-graphics - from package: hwloc

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

On Debian possible default full paths are:

/usr/bin/lstopo-no-graphics - from package: hwloc-nox
/usr/bin/lstopo-no-graphics - from package: hwloc

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

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