the: 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/bin/the - from package: the

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

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