Trình chỉnh sửa luồng - Môi trường

Chương này mô tả cách thiết lập môi trường SED trên hệ thống GNU / Linux của bạn.

Cài đặt bằng Trình quản lý gói

Nói chung, SED có sẵn theo mặc định trên hầu hết các bản phân phối GNU / Linux. Sử dụngwhichlệnh để xác định xem nó có trên hệ thống của bạn hay không. Nếu không, hãy cài đặt SED trên GNU / Linux dựa trên Debian bằngapt quản lý gói như sau:

[jerry]$ sudo apt-get install sed

Sau khi cài đặt, đảm bảo rằng SED có thể truy cập được thông qua dòng lệnh.

[jerry]$ sed --version

Khi thực thi đoạn mã trên, bạn nhận được kết quả sau:

sed (GNU sed) 4.2.2 
Copyright (C) 2012 Free Software Foundation, Inc. 
License GPLv3+: GNU GPL version 3 or later 
      
       . This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Written by Jay Fenlason, Tom Lord, Ken Pizzini, and Paolo Bonzini. GNU sed home page: 
       
        . General help using GNU software: 
        
         . E-mail bug reports to: 
         
          . Be sure to include the word "sed" somewhere in the "Subject:" field.

Similarly, to install SED on RPM based GNU/Linux, use yum package manager as follows:
 [root]# yum -y install sed
 After installation, ensure that SED is accessible via command line.
 [root]# sed --version
 On executing the above code, you get the following result:
 GNU sed version 4.2.1 
Copyright (C) 2009 Free Software Foundation, Inc. 
This is free software; see the source for copying conditions.  There is NO 
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, 
to the extent permitted by law.  
GNU sed home page: 
      
       . 
General help using GNU software: 
       
        . E-mail bug reports to: 
        
         . Be sure to include the word "sed" somewhere in the "Subject:" field. 
        
       
      
 Installation from Source Code
 As GNU SED is a part of the GNU project, its source code is available for free download. We have already seen how to install SED using package manager. Let us now understand how to install SED from its source code.
 The following installation is applicable to any GNU/Linux software, and for most other freely-available programs as well. Here are the installation steps: 
      
      Download the source code from an authentic place. The command-line utility wget serves this purpose. 
      [jerry]$ wget ftp://ftp.gnu.org/gnu/sed/sed-4.2.2.tar.bz2
 
      Decompress and extract the downloaded source code. 
      [jerry]$ tar xvf sed-4.2.2.tar.bz2 
 
      Change into the directory and run configure. 
      [jerry]$ ./configure 
 
      Upon successful completion, the configure generates Makefile. To compile the source code, issue a make command. 
      [jerry]$ make
 
      You can run the test suite to ensure the build is clean. This is an optional step. 
      [jerry]$ make check 
 
      Finally, install the SED utility. Make sure you have superuser privileges. 
      [jerry]$ sudo make install 
 
     
 That is it! You have successfully compiled and installed SED. Verify it by executing the sed command as follows:
 [jerry]$ sed --version
 On executing the above code, you get the following result:
 sed (GNU sed) 4.2.2 
Copyright (C) 2012 Free Software Foundation, Inc. 
License GPLv3+: GNU GPL version 3 or later 
      
       . 
This is free software: you are free to change and redistribute it. 
There is NO WARRANTY, to the extent permitted by law.  
Written by Jay Fenlason, Tom Lord, Ken Pizzini, 
and Paolo Bonzini. 
GNU sed home page: 
       
        . General help using GNU software: 
        
         . E-mail bug reports to: 
         
          . Be sure to include the word "sed" somewhere in the "Subject:" field.