lynx: 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/lynx - from package: lynx

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

On Debian possible default full paths are:

/usr/bin/lynx - from package: lynx-cur

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

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