Add environment variables and GCC compiler include and Lib environment variables in Linux

Add the following content to/etc/profile for all users. Only valid for the current user in the Home Directory
Add the following content to. bashrc or. bash_profile:
(Note: Do not add spaces before the equal sign; otherwise, command not found may appear)

# Find the executable file in PathProgram.
Export Path = $ path: $ home/bin

# GCC find the path of the header file
C_include_path =/usr/include/libxml2:/mylib
Export c_include_path

# G ++ locate the path of the header file
Cplus_include_path = $ cplus_include_path:/usr/include/libxml2:/mylib
Export cplus_include_path

# Find the path of the Dynamic Link Library
LD_LIBRARY_PATH = $ LD_LIBRARY_PATH:/mylib
Export LD_LIBRARY_PATH

# Find the path of the static library
LIBRARY_PATH = $ LIBRARY_PATH:/mylib
Export LIBRARY_PATH