slice: 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/slice - from package: slice

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

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