morse_inspector: 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/morse_inspector - from package: morse-simulator

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

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