ksystemlog: 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/ksystemlog - from package: kdeadmin

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

On Debian possible default full paths are:

/usr/bin/ksystemlog - from package: ksystemlog

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

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