nm86: 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/nm86 - from package: dev86

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

On Debian possible default full paths are:

/usr/bin/nm86 - from package: bin86

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

Error in other languages:
nm86: bevel nie gevind nie
nm86: comandă negăsită
nm86: comando não encontrado
nm86: commande introuvable
nm86: command not found
nm86: käsku ei ole
nm86: không tìm thấy lệnh
nm86: komanda nerasta
nm86: Kommando nicht gefunden.
nm86: kommandot finns inte
nm86: komut yok
nm86: nie znaleziono polecenia
nm86: níor aimsíodh an t-ordú
nm86: no se encontró la orden
nm86: no s'ha trobat l'ordre
nm86: opdracht niet gevonden
nm86: parancs nem található
nm86: perintah tidak ditemukan
nm86: príkaz nenájdený
nm86: příkaz nenalezen
nm86: команда не найдена
nm86: командата не е открита
nm86: 命令找不到
nm86: コマンドが見つかりません