logconv.pl: 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/logconv.pl - from package: 389-ds-base

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

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