Rserve.dbg: 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/lib/R/bin/Rserve.dbg - from package: r-cran-rserve

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

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