bvi: 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/bvi - from package: bvi

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

On Debian possible default full paths are:

/usr/bin/bvi - from package: bvi

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