How to redirect stdout / stderr to a file

Redirecting all your program output to a file is very simple and can be accomplished like this: myapp > output.log This line will send all the output generated by myapp to a file named output.log. The contents of output.log will always be overwritten; but you can use a second > to append to the current content like this: myapp >> output.log As well as with output, it is very useful to redirect the stderr (standard error output) to a file rather than to the screen.

How to install the C++ Boost Libraries on Windows

Boost is a set of high-quality libraries that speed up C++ development. They are included in most linux distributions and some of them are already part of the C++ Standard Library. In the Windows environment, you have to install them in order to take advantage of them. If you are using Microsoft Visual Studio, you can avoid the following steps by downloading a binary version from http://www.boostpro.com/download/and skip to the Testing section in this document.

One-liner to minimize your CSS files

The following one-liner will help you remove comments, spaces, and more from your CSS files. Suggestions are always welcomed. Important: Before running this command, create a copy of your original file. Try the resulting CSS in a test environment before releasing it. cat style.css | sed -e ' s/^[ t]*//g; # leading spaces s/[ t]*$//g; # trailing spaces s/([:{;,]) /1/g; # spaces after a colon, brace, semicolon, or comma s/ {/{/g; # spaces before a brace /^$/d # blank lines ' | sed -e :a -e '$!

How to manage local or remote services from command line

Starting or stopping services on Windows is a task commonly performed by using the Services snap-in on the MMC console. From time to time you want to perform such tasks from the command line. A possible reason for this is when you are creating scripts (batch files). To achieve this, you have two options: net for managing local services and sc.exe for remote ones. The net command is included in your default Windows installation.

Useful vim commands

Even though we have many sophisticated GUI text editors, there is one that has passed all time tests: vi. vi is a text editor created originally for Unix in 1976. Are you kidding? 1976? Why should I even bother to know it exists? Because that is the only text editor you will find for sure in any Unix like command line environment, that includes any Unix flavor, Linux and Macs. Believe me, there are many times when you have no other way to edit files (like webpages, php’s, css’s) but from the command line.

A basic .vimrc configuration file for vim users

.vimrc is the configuration file for vim. Whenever executed, vi will read this file’s contents setting up a customized environment. In order to work, you have to save it in your home directory (~). It is important to notice that the commands should not include the initial colon (:). Here are some useful commands: syntax on syntax highlighing set number show line numbers set ruler show the cursor position all the time set ignorecase ignore case when searching set hlsearch highlight searches set tabstop=4 number of spaces of tab character set shiftwidth=4 number of spaces to (auto)indent set autoindent always set auto indenting on set smartindent smart indent set cindent cindent