migration.sh: 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/share/biomaj/bin/migration.sh - from package: biomaj

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

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