lfc-rename: 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/lfc-rename - from package: lfc

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

On Debian possible default full paths are:

/usr/bin/lfc-rename - from package: lfc

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

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