halockrun: command not found

Have You tried accessing the binary with the full path?

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/halockrun - from package: hatools

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