wmf2gd: 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/wmf2gd - from package: libwmf

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

On Debian possible default full paths are:

/usr/bin/wmf2gd - from package: libwmf-bin

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

Error in other languages:
wmf2gd: bevel nie gevind nie
wmf2gd: comandă negăsită
wmf2gd: comando não encontrado
wmf2gd: commande introuvable
wmf2gd: command not found
wmf2gd: käsku ei ole
wmf2gd: không tìm thấy lệnh
wmf2gd: komanda nerasta
wmf2gd: Kommando nicht gefunden.
wmf2gd: kommandot finns inte
wmf2gd: komut yok
wmf2gd: nie znaleziono polecenia
wmf2gd: níor aimsíodh an t-ordú
wmf2gd: no se encontró la orden
wmf2gd: no s'ha trobat l'ordre
wmf2gd: opdracht niet gevonden
wmf2gd: parancs nem található
wmf2gd: perintah tidak ditemukan
wmf2gd: príkaz nenájdený
wmf2gd: příkaz nenalezen
wmf2gd: команда не найдена
wmf2gd: командата не е открита
wmf2gd: 命令找不到
wmf2gd: コマンドが見つかりません