italc: 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/italc - from package: italc-master

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