fake-hwclock: command not found

Have You tried accessing the binary with the full path?

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:

/sbin/fake-hwclock - from package: fake-hwclock

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