edg-gridftp-mkdir: 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/edg-gridftp-mkdir - from package: edg-gridftp-client

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

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