migratecred-bin: command not found

Have You tried accessing the binary with the full path?

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/migratecred-bin - from package: 389-ds-base

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

On Debian possible default full paths are:

/usr/bin/migratecred-bin - from package: 389-ds-base

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