slice2php: 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/slice2php - from package: ice35-translators

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

Error in other languages:
slice2php: bevel nie gevind nie
slice2php: comandă negăsită
slice2php: comando não encontrado
slice2php: commande introuvable
slice2php: command not found
slice2php: käsku ei ole
slice2php: không tìm thấy lệnh
slice2php: komanda nerasta
slice2php: Kommando nicht gefunden.
slice2php: kommandot finns inte
slice2php: komut yok
slice2php: nie znaleziono polecenia
slice2php: níor aimsíodh an t-ordú
slice2php: no se encontró la orden
slice2php: no s'ha trobat l'ordre
slice2php: opdracht niet gevonden
slice2php: parancs nem található
slice2php: perintah tidak ditemukan
slice2php: príkaz nenájdený
slice2php: příkaz nenalezen
slice2php: команда не найдена
slice2php: командата не е открита
slice2php: 命令找不到
slice2php: コマンドが見つかりません