bp_fetch: 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/bp_fetch - from package: bioperl

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

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