bp_gccalc: 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_gccalc - from package: bioperl

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

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