lzd: 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/lzd - from package: lzd

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