printenv: 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/printenv - from package: coreutils

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

On Debian possible default full paths are:

/usr/bin/printenv - from package: coreutils

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

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