cm_to_wigeon: 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/cm_to_wigeon - from package: wigeon

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

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