micro-httpd: 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/micro-httpd - from package: micro-httpd

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

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