#zip package installation
[root@china ~]# yum -y install zlib*
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
base | 3.7 kB 00:00
extras | 3.4 kB 00:00
updates | 3.4 kB 00:00
Setting up Install Process
Package zlib-1.2.3-29.el6.x86_64 already installed and latest version
Resolving Dependencies
--> Running transaction check
---> Package zlib-devel.x86_64 0:1.2.3-29.el6 will be installed
---> Package zlib-static.x86_64 0:1.2.3-29.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
========================================================================================================================================================
Package Arch Version Repository Size
========================================================================================================================================================
Installing:
zlib-devel x86_64 1.2.3-29.el6 base 44 k
zlib-static x86_64 1.2.3-29.el6 base 52 k
Transaction Summary
========================================================================================================================================================
Install 2 Package(s)
Total download size: 96 k
Installed size: 227 k
Downloading Packages:
(1/2): zlib-devel-1.2.3-29.el6.x86_64.rpm | 44 kB 00:00
(2/2): zlib-static-1.2.3-29.el6.x86_64.rpm | 52 kB 00:00
--------------------------------------------------------------------------------------------------------------------------------------------------------
Total 366 kB/s | 96 kB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : zlib-devel-1.2.3-29.el6.x86_64 1/2
Installing : zlib-static-1.2.3-29.el6.x86_64 2/2
Verifying : zlib-devel-1.2.3-29.el6.x86_64 1/2
Verifying : zlib-static-1.2.3-29.el6.x86_64 2/2
Installed:
zlib-devel.x86_64 0:1.2.3-29.el6 zlib-static.x86_64 0:1.2.3-29.el6
#python installation
[root@china python_tools]# ll
Total usage 22180 -rw -
r-- r-- 1 root root 22710891 May 2 06:15 Python - 3.6.4.tgz
[root@china python_tools]#
[root@china python_tools]#
[root@china python_tools]#
#Open the terminal with root privileges, enter the storage path of the installation package, and decompress the installation package:
[root@china python_tools]# tar -xzvf Python-3.6.4.tgz
#Enter the path of the decompressed installation package:
[root@china python_tools]# cd Python-3.6.4
#Compile the installation package, specify the installation path, and execute the installation command:
#Note: The prefix parameter is used to specify that Python is installed in a new directory to prevent overwriting the system's default installed python
[root@china Python-3.6.4]# ./configure --prefix=/usr/local/python36
[root@china Python - 3.6 . 4 ]# make && make install #Modify the
default Python path of the system, because the default Python 2.6.6 point when entering a Python command in the terminal
[root@china Python - 3.6 . 4 ]# mv / usr/bin/python /usr/bin/python-2.6.6 makes a new symlink , pointing
to Python - 3.6.0 :
Note: python36 here is the installation path specified in step 4, python3.6 is the executable program in the Python package
[root@china Python-3.6.4]# ln -s /usr/local/python36/bin/python3.6 /usr/bin/python
[root@china Python-3.6.4]# python
Python 3.6.4 (default, May 2 2018, 06:22:39)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux
Type " help " , " copyright " , " credits " or " license " for more information.
>>>
7 . Because yum depends on python, here we modify the default python, we need to modify yum to make it run To point to an older version:
vi /usr/bin/ yum
put "# !/usr/bin/ python" in the first line
Modify it to "# ! /usr/bin/python-2.6.6 " and save it
[root@china javatools]# chmod a+x jdk-6u45-linux-i586.bin
[root@china javatools]# ./jdk-6u45-linux-i586.bin
#Modify the jdk directory
[root@china javatools]# mv jdk1.6.0_45/ /usr/java/jdk1.6.0_45
[root@china javatools]# ls
jdk-6u45-linux-i586.bin
[root@china javatools]# cd /usr/java/
[root@china java]# ls
jdk1.6.0_45
[root@china java]# cd jdk1.6.0_45/
#Set environment variables
vi /etc/profile
Add at the end:
##use for JAVA 1.6
JAVA_HOME=/usr/java/jdk1.6.0_45;
PATH=$JAVA_HOME/bin:$PATH;
CLATHPATH=.:$JAVA_HOME/lib;
export JAVA_HOME PATH CLATHPATH;
Check whether the environment variable is set successfully:
echo $JAVA_HOME
echo $PARH
echo $CLATHPATH
Check if jdk is installed successfully
[root@china jdk1.6.0_45]# java -version
java version "1.6.0_45"
Java(TM) SE Runtime Environment (build 1.6.0_45-b06)
Java HotSpot(TM) Server VM (build 20.45-b01, mixed mode)
[root@china jdk1.6.0_45]# javac
Usage: javac <options> <source file>
Among them, possible options include:
- g generates all debug info
- g:none generates no debug info
- g:{lines,vars,source} generates only some debug info
- nowarn doesn't generate any warnings
-verbose outputs a message about what the compiler is doing