cjflash: 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/cjflash - from package: pcsc-cyberjack-cjflash

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

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