ntfsrecover: 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:

/bin/ntfsrecover - from package: ntfsprogs

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

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