multiple_rarefactions.py: 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/lib/qiime/bin/multiple_rarefactions.py - from package: qiime

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

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