collie: 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/collie - from package: sheepdog

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

On Debian possible default full paths are:

/usr/sbin/collie - from package: sheepdog

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

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