testdbfawk: 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 Debian possible default full paths are:

/usr/bin/testdbfawk - from package: xastir

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

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