esd2esi: 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/esd2esi - from package: exonerate

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

On Debian possible default full paths are:

/usr/bin/esd2esi - from package: exonerate

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

Error in other languages:
esd2esi: bevel nie gevind nie
esd2esi: comandă negăsită
esd2esi: comando não encontrado
esd2esi: commande introuvable
esd2esi: command not found
esd2esi: käsku ei ole
esd2esi: không tìm thấy lệnh
esd2esi: komanda nerasta
esd2esi: Kommando nicht gefunden.
esd2esi: kommandot finns inte
esd2esi: komut yok
esd2esi: nie znaleziono polecenia
esd2esi: níor aimsíodh an t-ordú
esd2esi: no se encontró la orden
esd2esi: no s'ha trobat l'ordre
esd2esi: opdracht niet gevonden
esd2esi: parancs nem található
esd2esi: perintah tidak ditemukan
esd2esi: príkaz nenájdený
esd2esi: příkaz nenalezen
esd2esi: команда не найдена
esd2esi: командата не е открита
esd2esi: 命令找不到
esd2esi: コマンドが見つかりません