load_genbank: command not found

Have You tried accessing the binary with the full path?

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/load_genbank - from package: gbrowse

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