This will help you to easily set correct permissions on your linux/apache website files and directories with one command

As root cd to the ‘document root path’ of your website directory (ie: html, htdocs, httpdocs) and do as follows

find . -type f -exec chmod 644 {} \; && find . -type d -exec chmod 755 {} \;

or

find /path/to/docroot/. -type f -exec chmod 644 {} \; && find . -type d -exec chmod 755 {} \;

this sets all your files to 644 and all your directories to 755

for example,

cd /var/www/html 

find . -type f -exec chmod 644 {} \; && find . -type d -exec chmod 755 {} \;

As found at linux-noob.com

The purpose of using the “distributed configuration file” .htaccess is so that users may control authentication. It can also be set in the Apache configuration file httpd.conf WITHOUT using the .htaccess file. This can improve server performance as the server will not have to look for the .htaccess file in each subdirectory.

<Directory /path/to/public_html/membersonly>
AllowOverride AuthConfig
AuthName "Add message visitors will see here. Keep Out!"
AuthType Basic
AuthUserFile /path/to/public_html/membersonly.htpasswd
AuthGroupFile /dev/null
require user name-of-user
</Directory>

Require user is optional. There is a lot of good information about httpd.conf, .htaccess in a tutorial at this link.
http://www.yolinux.com/TUTORIALS/LinuxTutorialApacheAddingLoginSiteProtection.html

This is probably what most Linux administrators would say is very easy or one of the simplest things to preform. I manage to have to back and look it up every time so I thought it would be helpful to someone to post it. So here it is in all its glory.

Type in
echo '/path/to/startup/script.sh start' >> /etc/rc.local

If you have better or other ways of accomplishing the same please share.

I needed a Windows batch file to check if a file has changed and if it has do something.
What I was trying to accomplish is I have a file written to the c:\ drive by a web application as users interact with it.
It rewrites the file every couple of minutes or so. When the file is rewritten I want it to display the content to the window or log it into a file.
I didn’t want to display it or log it unless the info has actually changed.

Here was some advice I got

You can check if a file has changed quite easily using the archive bit:

dir /b /aa whatever.txt

Does that report your file as changed?

then do

attrib -a whatever.txt
and
dir /b /aa whatever.txt
will not find it until it has changed again

OR you could use xcopy.

1. if it uses xcopy /M then it will copy if the file has changed and reset the
archive bit for you.
2. Use /d and it will copy the file if newer.

For the xcopy way

@echo off
:start
del "%temp%\file.txt"
xcopy /M C:\file.txt "%temp%"
if exist "%temp%\file.txt" echo File has changed
ping 127.0.0.1 -n 5
goto start

or

@echo off
:start
xcopy /Y /D C:\file.txt "%temp%" | find /i "1 File(s) copied" && echo File has changed
ping 127.0.0.1 -n 5
goto start

To get rid of the ” 1 files copied” message on the screen with the last one:

@echo off
:start
xcopy /Y /D C:\file.txt "%temp%" | find /i "1 File(s) copied" >NUL && echo File has changed
ping 127.0.0.1 -n 5
goto start

How big is this file though?

@echo off
dir /aa /b c:\file.txt >NUL 2>&1 && echo Has changed & attrib -a c:\file.txt

Here was some more advice given

:loop
dir /aa c:\file.txt >nul 2>&1
if %errorlevel% equ 0 (
attrib -a c:\file.txt
::File has changed. Do something
)

ping -n 5 localhost >nul 2>&1
goto loop