attean_parse.gz: 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/share/doc/libattean-perl/examples/bin/attean_parse.gz - from package: libattean-perl

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

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