otfdump: 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/otfdump - from package: libotf

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

On Debian possible default full paths are:

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

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

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