xmltext: 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 Debian possible default full paths are:

/usr/bin/xmltext - from package: emboss

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

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