Let’s learn how to use the head command in Linux with practical examples. I’ll use the fileagatha.txtin this example and here is the content of this text file. You can download the file to practice the commands while following this tutorial: The Mysterious Affair at Styles The Secret A...
2. tail Command The tail command allows you to display last ten lines of any text file. Similar to the head command above, tail command also support options ‘n‘ number of lines and ‘n‘ number of characters. The basic syntax of tail command is: #tail [options] [filenames] For exa...
you often need to free disk space by deleting biggest files and directories. In order to do that, you need to know some Linux find command examples to list and delete some biggest files and directories and that’s what you will learn in this tutorial. As a ...
1. What is the primary purpose of the head command in Linux? A. To display the last part of files B. To display the first part of files C. To sort files D. To concatenate files Show Answer 2. Which option can be used with head to specify the number of lines to display?
2. Read the first 10 lines of a text file using the "head" command. If you want to read the first 20 lines, use "head -20" command. herong$ head history-of-linux.txt History of Linux In April, 1991, Linus Torvalds, a 21-years old student on computer ...
Learn how and when to use the Linux head command and its options for modifying the output (with examples) in this easy-to-follow tutorial.
grunt-cli: The grunt command line interface (v1.2.0) Fatal error: Unable to find local grunt. If you're seeing this message, grunt hasn't been installed locally to your project. For more information about installing and configuring grunt, please see the Getting Started guide: http://gruntjs...
‘head‘ command is used to read the file from the beginning and the ‘tail‘ command is used to read the file from the ending. How you can use ‘head‘ and ‘tail‘ commands with different options to read the particular portion of a file is shown in this tutorial. ...
+以下示例设置 NODE_VERSION = 7.2.0 , 在后续的指令中可以通过 $NODE_VERSION 引用: + +ENV NODE_VERSION 7.2.0 + +RUN curl -SLO "https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION-linux-x64.tar.xz" \ + && curl -SLO "https://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt...
[Unit] Description=Monitor headphone connection in Linux [Service] ExecStart=/usr/local/bin/headphone-connection-monitor.sh Restart=always User=root [Install] WantedBy=multi-user.targetCopy In this code, we briefly describe the service, the command that should be run when the service is started...