uxvile: 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/uxvile - from package: xvile

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

On Debian possible default full paths are:

/usr/bin/uxvile - from package: xvile

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

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