scan_gbrowse: 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/scan_gbrowse - from package: gbrowse

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

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