babelfish.R: 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 CentOS possible default full paths are:

/usr/share/R/library/nws/bin/babelfish.R - from package: R-nws

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/lib/R/site-library/nws/bin/babelfish.R - from package: r-cran-nws

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

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