gil2bin: 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/gil2bin - from package: ncbi-tools-bin

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

Error in other languages:
gil2bin: bevel nie gevind nie
gil2bin: comandă negăsită
gil2bin: comando não encontrado
gil2bin: commande introuvable
gil2bin: command not found
gil2bin: käsku ei ole
gil2bin: không tìm thấy lệnh
gil2bin: komanda nerasta
gil2bin: Kommando nicht gefunden.
gil2bin: kommandot finns inte
gil2bin: komut yok
gil2bin: nie znaleziono polecenia
gil2bin: níor aimsíodh an t-ordú
gil2bin: no se encontró la orden
gil2bin: no s'ha trobat l'ordre
gil2bin: opdracht niet gevonden
gil2bin: parancs nem található
gil2bin: perintah tidak ditemukan
gil2bin: príkaz nenájdený
gil2bin: příkaz nenalezen
gil2bin: команда не найдена
gil2bin: командата не е открита
gil2bin: 命令找不到
gil2bin: コマンドが見つかりません