sliceprint: 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 CentOS possible default full paths are:

/usr/bin/sliceprint - from package: enscript

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/sliceprint - from package: enscript

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

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