sysreport: 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/sysreport - from package: sysreporter

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

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