ftdump: 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/ftdump - from package: freetype-demos

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

On Debian possible default full paths are:

/usr/bin/ftdump - from package: freetype2-demos

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

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