(1):  linux command

Mount USB:

mount -t vfat /dev/sda1 /mnt/cdrom

Unmount USB:

umount /mnt/cdrom

copy directory recyle:

cp -r apache-ant-1.7.0 /usr/local

unpackage file:

tar -zxvf apache-ant-1.7.0-bin.tar.gz

ctr+alt+f4 swich to dos interface

alt+f7 return to graphic

find / -name filename

ping local ip : ifconfig

vi usage :

[esc] [insert]

:w write

:q quit

(2):  software install

From the Ant FAQ:

How do you get ant-1.6.x (or any version later than 1.5.2) to work on on RedHat ES 3?

Redhat ES 3.0 comes installed with ant 1.5.2. Even if you have your PATH and ANT_HOME variables set correctly to a later version of ant, you will always be forced to use the preinstalled version.

To use a later version of ant on this OS you could do the following:

$ ant -version
Apache Ant version 1.5.2-23 compiled on November 12 2003
$ su -l
# rpm -e ant ant-libs
# exit
$ hash -r
$ ant -version
Apache Ant version 1.6.2 compiled on July 16 2004

But on my computer similar do like this:
[root@localhost TestAntBuld]# ant -version
Apache Ant version 1.5.2-20 compiled on September 25 2003
[root@localhost root]# sudo -l
User root may run the following commands on this host:
    (ALL) ALL
[root@localhost root]# rpm -e ant ant-libs
[root@localhost root]# exit
logout
 
[root@localhost root]# bash -r
[root@localhost root]# exit
exit
[root@localhost root]# ant -version
Apache Ant version 1.7.0 compiled on December 13 2006

Now, That is ok!

Install Junit
1 unzip the download zip file
2 set path (/etc/profile  and /etc/profile.d/java.sh)

Install PostgreSQL
1 gunzip postgresql-8.2.3.tar.gz
tar xf postgresql-8.2.3.tar

This will create a directory postgresql-8.2.3 under the current directory with the PostgreSQL sources. Change into that directory for the rest of the installation procedure.

2 ./configure

3 gmake

4 gmake check

5 gmake install

6 To undo the installation use the command gmake uninstall. However, this will not remove any created directories.

LD_LIBRARY_PATH=/usr/local/pgsql/lib

  export LD_LIBRARY_PATH
8 set enviroment path

PATH=/usr/local/pgsql/bin:$PATH

 export PATH

JUnit Test:

*** You must first compile the java classes,afer that, then you can test it!

run the test:

    *

      To run the test from the console, type:

          java org.junit.runner.JUnitCore junitfaq.SimpleTest

    *

      To run the test with the test runner used in main(), type:

          java junitfaq.SimpleTest

The passing test results in the following textual output:
        .
Time: 0

OK (1 tests)

 (3):  intro_postgreSQL_startup

Before you can do anything, you must initialize a database storage area on disk. We call this a database cluster.
The desired file system location of your database cluster is indicated by the -D option, for example:

$ initdb -D /usr/local/pgsql/data

anyone can access the database, you must start the database server. The database server program is called postgres.  The postgres program must know where to find the data it is supposed to use. This is done with the -D option. Thus, the simplest way to start the server is:

$ postgres -D /usr/local/pgsql/data

which will leave the server running in the foreground. This must be done while logged into the PostgreSQL user account. Without -D, the server will try to use the data directory named by the environment variable PGDATA. If that variable is not provided either, it will fail.

Normally it is better to start postgres in the background. For this, use the usual shell syntax:

$ postgres -D /usr/local/pgsql/data >logfile 2>&1 &