PUBLIC MARKS from camel with tags shell & apache

asql is a simple console shell which allows you to run SQL queries against an Apache logfile, something that can be very useful - especially at getting information which is not easily available via static logfile analysers.

The cleverbox provides an interactive command line shell dedicated to the deployment and maintenance of trac and subversion instances. It can handle multiple configuration profiles, enabling the deployment of differently flavored type of project (trac configuration and permissions, apache configuration templates, etc). Project's main objective is to make your life as simple as possible. Thus, it comes with easy installation, easy upgrades and a comprehensive documentation.

Many times, you want to execute a command not only on one server, but also on several servers. For example, find out * Version of kernel * Version of Apache web server * Update static html or images files on all web servers via rsync * Find out user information, server information, memory usage etc * Security/patch checking tentakel I have already covered how to execute commands on multiple Linux or UNIX servers via shell script. The disadvantage of script is commands do not run in parallel on all servers. However, several tools exist to automate this procedure in parallel. With the help of tool called tentakel, you run distributed command execution. It is a program for executing the same command on many hosts in parallel using ssh (it supports other methods too). Main advantage is you can create several sets of servers according requirements. For example webserver group, mail server group, home servers group etc. The command is executed in parallel on all servers in this group (time saving). By default, every result is printed to stdout (screen). The output format can be defined for each group.