nrparms: command not found

Have You tried accessing the binary with the full path?

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/sbin/nrparms - from package: ax25-tools

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