convert2osm: 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/convert2osm - from package: foxtrotgps

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

Error in other languages:
convert2osm: bevel nie gevind nie
convert2osm: comandă negăsită
convert2osm: comando não encontrado
convert2osm: commande introuvable
convert2osm: command not found
convert2osm: käsku ei ole
convert2osm: không tìm thấy lệnh
convert2osm: komanda nerasta
convert2osm: Kommando nicht gefunden.
convert2osm: kommandot finns inte
convert2osm: komut yok
convert2osm: nie znaleziono polecenia
convert2osm: níor aimsíodh an t-ordú
convert2osm: no se encontró la orden
convert2osm: no s'ha trobat l'ordre
convert2osm: opdracht niet gevonden
convert2osm: parancs nem található
convert2osm: perintah tidak ditemukan
convert2osm: príkaz nenájdený
convert2osm: příkaz nenalezen
convert2osm: команда не найдена
convert2osm: командата не е открита
convert2osm: 命令找不到
convert2osm: コマンドが見つかりません