cqrlog: 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/cqrlog - from package: cqrlog

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