reorient: 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/lib/cmtk/bin/reorient - from package: cmtk

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

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