gene2xml: 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/gene2xml - from package: ncbi-tools-bin

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

Error in other languages:
gene2xml: bevel nie gevind nie
gene2xml: comandă negăsită
gene2xml: comando não encontrado
gene2xml: commande introuvable
gene2xml: command not found
gene2xml: käsku ei ole
gene2xml: không tìm thấy lệnh
gene2xml: komanda nerasta
gene2xml: Kommando nicht gefunden.
gene2xml: kommandot finns inte
gene2xml: komut yok
gene2xml: nie znaleziono polecenia
gene2xml: níor aimsíodh an t-ordú
gene2xml: no se encontró la orden
gene2xml: no s'ha trobat l'ordre
gene2xml: opdracht niet gevonden
gene2xml: parancs nem található
gene2xml: perintah tidak ditemukan
gene2xml: príkaz nenájdený
gene2xml: příkaz nenalezen
gene2xml: команда не найдена
gene2xml: командата не е открита
gene2xml: 命令找不到
gene2xml: コマンドが見つかりません