amuFormat.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 CentOS possible default full paths are:

/usr/bin/amuFormat.sh - from package: mtools

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

On Debian possible default full paths are:

/usr/bin/amuFormat.sh - from package: mtools

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

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