typespeed: 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/typespeed - from package: typespeed

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

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