ircio: 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/sbin/ircio - from package: ircii
/usr/lib/scrollz/bin/ircio - from package: scrollz

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

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