cervisia: 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/cervisia - from package: kdesdk

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

On Debian possible default full paths are:

/usr/bin/cervisia - from package: cervisia

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

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