fntsample: 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/fntsample - from package: fntsample

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

On Debian possible default full paths are:

/usr/bin/fntsample - from package: fntsample

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

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