asntool: 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/asntool - from package: ncbi-tools-bin

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

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