dbfxtrct: 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/dbfxtrct - from package: xbase-utils

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

On Debian possible default full paths are:

/usr/bin/dbfxtrct - from package: libxbase64-bin

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

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