maq.pl: command not found

Have You tried accessing the binary with the full path?

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/maq.pl - from package: maq

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