gccgo: 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/gccgo - from package: gccgo

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

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