tilelive-copy: command not found

Have You tried accessing the binary with the full path?

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/tilelive-copy - from package: node-tilelive

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