showattr: 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/sbin/showattr - from package: util-vserver

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

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