otf2bdf: 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/otf2bdf - from package: otf2bdf

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

On Debian possible default full paths are:

/usr/bin/otf2bdf - from package: otf2bdf

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

Error in other languages:
otf2bdf: bevel nie gevind nie
otf2bdf: comandă negăsită
otf2bdf: comando não encontrado
otf2bdf: commande introuvable
otf2bdf: command not found
otf2bdf: käsku ei ole
otf2bdf: không tìm thấy lệnh
otf2bdf: komanda nerasta
otf2bdf: Kommando nicht gefunden.
otf2bdf: kommandot finns inte
otf2bdf: komut yok
otf2bdf: nie znaleziono polecenia
otf2bdf: níor aimsíodh an t-ordú
otf2bdf: no se encontró la orden
otf2bdf: no s'ha trobat l'ordre
otf2bdf: opdracht niet gevonden
otf2bdf: parancs nem található
otf2bdf: perintah tidak ditemukan
otf2bdf: príkaz nenájdený
otf2bdf: příkaz nenalezen
otf2bdf: команда не найдена
otf2bdf: командата не е открита
otf2bdf: 命令找不到
otf2bdf: コマンドが見つかりません