migrate-ebs-image: 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/migrate-ebs-image - from package: libvm-ec2-perl

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

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