scsitape: 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/sbin/scsitape - from package: mtx

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

On Debian possible default full paths are:

/usr/sbin/scsitape - from package: mtx

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

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