chaosreader: 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/chaosreader - from package: chaosreader

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