ebi2xml: 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/ebi2xml - from package: bibutils

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

On Debian possible default full paths are:

/usr/bin/ebi2xml - from package: bibutils

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

Error in other languages:
ebi2xml: bevel nie gevind nie
ebi2xml: comandă negăsită
ebi2xml: comando não encontrado
ebi2xml: commande introuvable
ebi2xml: command not found
ebi2xml: käsku ei ole
ebi2xml: không tìm thấy lệnh
ebi2xml: komanda nerasta
ebi2xml: Kommando nicht gefunden.
ebi2xml: kommandot finns inte
ebi2xml: komut yok
ebi2xml: nie znaleziono polecenia
ebi2xml: níor aimsíodh an t-ordú
ebi2xml: no se encontró la orden
ebi2xml: no s'ha trobat l'ordre
ebi2xml: opdracht niet gevonden
ebi2xml: parancs nem található
ebi2xml: perintah tidak ditemukan
ebi2xml: príkaz nenájdený
ebi2xml: příkaz nenalezen
ebi2xml: команда не найдена
ebi2xml: командата не е открита
ebi2xml: 命令找不到
ebi2xml: コマンドが見つかりません