kile: 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/kile - from package: kile

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

On Debian possible default full paths are:

/usr/bin/kile - from package: kile

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

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