slice2cpp: 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/slice2cpp - from package: ice35-translators

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

Error in other languages:
slice2cpp: bevel nie gevind nie
slice2cpp: comandă negăsită
slice2cpp: comando não encontrado
slice2cpp: commande introuvable
slice2cpp: command not found
slice2cpp: käsku ei ole
slice2cpp: không tìm thấy lệnh
slice2cpp: komanda nerasta
slice2cpp: Kommando nicht gefunden.
slice2cpp: kommandot finns inte
slice2cpp: komut yok
slice2cpp: nie znaleziono polecenia
slice2cpp: níor aimsíodh an t-ordú
slice2cpp: no se encontró la orden
slice2cpp: no s'ha trobat l'ordre
slice2cpp: opdracht niet gevonden
slice2cpp: parancs nem található
slice2cpp: perintah tidak ditemukan
slice2cpp: príkaz nenájdený
slice2cpp: příkaz nenalezen
slice2cpp: команда не найдена
slice2cpp: командата не е открита
slice2cpp: 命令找不到
slice2cpp: コマンドが見つかりません