ksirkskineditor: 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/ksirkskineditor - from package: kdegames

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

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