logs2html: 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/logs2html - from package: irclog2html

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

Error in other languages:
logs2html: bevel nie gevind nie
logs2html: comandă negăsită
logs2html: comando não encontrado
logs2html: commande introuvable
logs2html: command not found
logs2html: käsku ei ole
logs2html: không tìm thấy lệnh
logs2html: komanda nerasta
logs2html: Kommando nicht gefunden.
logs2html: kommandot finns inte
logs2html: komut yok
logs2html: nie znaleziono polecenia
logs2html: níor aimsíodh an t-ordú
logs2html: no se encontró la orden
logs2html: no s'ha trobat l'ordre
logs2html: opdracht niet gevonden
logs2html: parancs nem található
logs2html: perintah tidak ditemukan
logs2html: príkaz nenájdený
logs2html: příkaz nenalezen
logs2html: команда не найдена
logs2html: командата не е открита
logs2html: 命令找不到
logs2html: コマンドが見つかりません