checkdirfile: 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/checkdirfile - from package: libgetdata-tools

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

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