ntfsfix: 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/ntfsfix - from package: ntfsprogs
/usr/bin/ntfsfix - from package: ntfsprogs

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

On Debian possible default full paths are:

/bin/ntfsfix - from package: ntfs-3g

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

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