perlconsole: 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/perlconsole - from package: perlconsole

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