Satish Kumar

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MY BLOGS

  • Linux Concept https://linuxconcept.com/

    This Blog is for Linux Lover, we are providing tutorial content on Linux Operating system and Open Source Application.

LATEST ARTICLES ( 282 )

  • Understanding Getopts

    Command-line parameters passed along with commands are also called positional parameters. Many times, we need to pass options such as -f and -v along with a... Read more

    Posted on 29 March 2021

  • Command-line Arguments in Linux Shell

    Command-line arguments are required for the following reasons: They inform the utility, or they command which file or group of files to process... Read more

    Posted on 28 March 2021

  • Read-Only Variables in Linux

    During shell scripting, we may need a few variables, which cannot be modified. This may be needed for security reasons. We can declare variables as read-only... Read more

    Posted on 27 March 2021

  • Environment Variables in Linux

    Environmental variables are inherited by any subshells or child processes, for example, HOME, PATH. Every shell Terminal has a memory area called the... Read more

    Posted on 26 March 2021

  • Understanding Variables in Bash

    Let’s learn about creating variables in a shell. Declaring variables in Linux is very easy. We just need to use the variable name and initialize it with the... Read more

    Posted on 25 March 2021

  • Logical Operators & Pipes in Linux

    Logical operators Let’s now take a look at logical operators. Command1 command2 The first command is started in the background to continue until it has... Read more

    Posted on 24 March 2021

  • Command Separators in Linux

    Commands can also be combined in such a way that they are executed in a particular sequence. Command1; command2 A command line can consist of multiple commands. Read more

    Posted on 23 March 2021

  • Command Substitution

    On a keyboard, there is one interesting key, the backward quote, `. This key is normally situated below the Esc key. If we place text between two successive... Read more

    Posted on 22 March 2021

  • Pattern Searching Using Grep

    The command g/RE/p stands for globally search for the regular expression (RE) and print the line. The return statuses are 0 for success, 1 for pattern not found... Read more

    Posted on 21 March 2021

  • Pattern Matching in Vi Editor

    To learn about pattern matching, we will ensure that the pattern that we will search for is highlighted when the pattern searched for is found. The configuratio... Read more

    Posted on 20 March 2021

  • Redirection Operators in Linux

    You will learn the very useful concept of I/O redirection in this article. File descriptors All I/O–including files, pipes, and sockets – are handled by the... Read more

    Posted on 19 March 2021

  • Text Filter in Linux

    Text filtering tools Normally, shell scripting involves report generation, which will include processing various text files and filtering their output to finall... Read more

    Posted on 18 March 2021

  • Linux Automation [at, Cron]

    Understanding “at” Many a time, we need to schedule a task for a future time, say in the evening at 8 p.m. on a specific day. We can use the at command in such ... Read more

    Posted on 17 March 2021

  • Linux Process Monitoring Tools

    We can view the native performance of various processes in an OS by using the following tools: To view a dynamic real-time view of the running processes in an... Read more

    Posted on 16 March 2021

  • Linux Process Management

    Linux process basics A running instance of a program is called a process. A program stored in the hard disk or pen drive is not a process. Read more

    Posted on 15 March 2021

  • First Linux Bash Script – Hello World

    Since we have learned basic commands in the Linux OS, we will now write our first shell script called hello.sh. You can use any editor of your choice, such as... Read more

    Posted on 14 March 2021

  • Basic Linux Commands

    Learning basic Linux commands The following table lists a few basic Linux commands: Command Description $ ls This command is used to check the content of the... Read more

    Posted on 13 March 2021

  • Fndamental of Linux Shell

    Comparison of shells Initially, the Unix OS used a shell program called the Bourne shell. Then, eventually, many more shell programs were developed for differen... Read more

    Posted on 12 March 2021

  • Creating a Config File and Using It in Tandem with Your Scripts

    In this article, we are going to create a config file and use it in our shell script. Prerequisites Besides having a terminal open, you need basic knowledge of... Read more

    Posted on 11 March 2021

  • Calculating and Reducing the Runtime of a Script

    In this article, we are going to learn how to calculate and reduce the script’s runtime. A simple time command will help in calculating the execution time. Read more

    Posted on 10 March 2021