mustache: 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/bin/mustache - from package: rubygem-mustache
/usr/lib/ruby/gems/1.8/gems/mustache-0.99.4/bin/mustache - from package: rubygem-mustache

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

On Debian possible default full paths are:

/usr/bin/mustache - from package: ruby-mustache

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

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