anacron: 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/sbin/anacron - from package: cronie-anacron

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

On Debian possible default full paths are:

/usr/sbin/anacron - from package: anacron

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

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