lbzrecover: 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/lbzrecover - from package: lbzip2-utils

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

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