comix: 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/comix - from package: comix

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

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