otftobdf: 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/otftobdf - from package: libotf

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

On Debian possible default full paths are:

/usr/bin/otftobdf - from package: libotf-bin

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