spicec: 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/spicec - from package: spice-client

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

On Debian possible default full paths are:

/usr/bin/spicec - from package: spice-client

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

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