adjtimex: 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:

/sbin/adjtimex - from package: adjtimex

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

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