A Good link for apache settings .htaccess

http://borkweb.com/story/apache-rewrite-cheatsheet

I will add more to this...!!

Linux Killing a Process using pid or process name

To get rid of a background job, use the kill command with the job number as an argument. For example, to kill job 2:

% kill %2

To get rid of only one process, use the kill command with the process ID as an argument. For example, to kill process 12030:

% kill 12030

If that doesn't kill it, use the -9 option:

% kill -9 12030

Here is a ksh script to kill processes by name.
Usage: kill processName

---------------- cut here ---------------------
#!/usr/bin/ksh

str="$1"

ps -ef  grep "$str"  {
while read aline;do
        cmd=`echo $aline  awk '{ print $9 }'`
        if [ [ $cmd = $0 ] ]; then
                continue
        fi

        cmd=`echo $aline  awk '{ print $8 " " $9 " " $10 }'`
        if [ [ $cmd = "grep" ] ]; then
                continue
        fi

        cmd2=`echo $cmd  grep "$str"`
        if [ [ $cmd2 = "" ] ]; then
                continue
        fi

        print "$aline"
        pid=`echo $aline  awk '{ print $2 }'`
        print "kill pid = $pid"
        kill -9 $pid
        done
}

Linux Getting info of a process like pid(process id)

there are a collection of command to find the process information. which are:

1) Simply use ps command as follows:

ps aux | grep {process-name}
For example find out if mysqld process (mysqld pid) is running or not:
$ ps aux | grep mysqld
Output:

mysql    28290  1.1  2.7 340496 56812 ?        Sl   Jul31 348:27 /usr/libexec/mysqld


2)Find the process ID of a running program using pidof

pidof command finds the process id’s (pids) of the named programs. It prints those id’s on screen.

# pidof httpd
1874 1873 1872 1863 1862 1861 1860 1859 1829

3)PG grep is also used to know the PID

u can use pgrep like this
pgrep process name
pgrep httpd
pgrep named
pgrep firefox