debootstrap: 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/debootstrap - from package: debootstrap

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

On Debian possible default full paths are:

/usr/sbin/debootstrap - from package: debootstrap

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

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