ganesha.nfsd: 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/ganesha.nfsd - from package: nfs-ganesha

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

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