mklistdoc: 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/mklistdoc - from package: gwenhywfar-devel

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

On Debian possible default full paths are:

/usr/bin/mklistdoc - from package: gwenhywfar-tools

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

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