syslog-service.sh: 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/syslog-service.sh - from package: sblim-cmpi-syslog

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

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