style: 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/style - from package: diction

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

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