get_clientids: 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/get_clientids - from package: nfs-ganesha-utils

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

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