Stangle: 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/lib64/R/bin/Stangle - from package: R-core
/usr/lib/R/bin/Stangle - from package: R-core

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

On Debian possible default full paths are:

/usr/lib/R/bin/Stangle - from package: r-base-core

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

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