convert_minicbf: 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/convert_minicbf - from package: CBFlib

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

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