htproxyrenew: 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/htproxyrenew - from package: gridsite-clients

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

On Debian possible default full paths are:

/usr/bin/htproxyrenew - from package: gridsite-clients

You may install the required package with command apt-get install {package}

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