BtoA: 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/BtoA - from package: pki-java-tools

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

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