asmping: 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/asmping - from package: ssmping

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

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