slice2freeze: 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/bin/slice2freeze - from package: ice35-translators

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

Error in other languages:
slice2freeze: bevel nie gevind nie
slice2freeze: comandă negăsită
slice2freeze: comando não encontrado
slice2freeze: commande introuvable
slice2freeze: command not found
slice2freeze: käsku ei ole
slice2freeze: không tìm thấy lệnh
slice2freeze: komanda nerasta
slice2freeze: Kommando nicht gefunden.
slice2freeze: kommandot finns inte
slice2freeze: komut yok
slice2freeze: nie znaleziono polecenia
slice2freeze: níor aimsíodh an t-ordú
slice2freeze: no se encontró la orden
slice2freeze: no s'ha trobat l'ordre
slice2freeze: opdracht niet gevonden
slice2freeze: parancs nem található
slice2freeze: perintah tidak ditemukan
slice2freeze: príkaz nenájdený
slice2freeze: příkaz nenalezen
slice2freeze: команда не найдена
slice2freeze: командата не е открита
slice2freeze: 命令找不到
slice2freeze: コマンドが見つかりません