aseqdump: 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/aseqdump - from package: alsa-utils

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

On Debian possible default full paths are:

/usr/bin/aseqdump - from package: alsa-utils

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

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