tiny-lr: 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 CentOS possible default full paths are:

/usr/bin/tiny-lr - from package: nodejs-tiny-lr-fork
/usr/lib/node_modules/tiny-lr-fork/bin/tiny-lr - from package: nodejs-tiny-lr-fork

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