bgltags: 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/bgltags - from package: bigloo

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