print_metadata_stats.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/print_metadata_stats.py - from package: qiime

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

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