lzcmp: 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/lzcmp - from package: xz-lzma-compat

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

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