lrzip: 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/bin/lrzip - from package: lrzip

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

On Debian possible default full paths are:

/usr/bin/lrzip - from package: lrzip

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

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