How to check if a path/file/dir exists or not in Linux bash shell script ?
Yesterday when i was creating a shell script, i want to input a path from user and make a check if the particular path exists or not. Hence in this...
Month: January 2018
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How memory is allocated in RAM in Linux: Concept of MMU, page-in, and page-out & Thrashing ?
In this post we will look how memory is allocated in RAM or in simple words, how physical memory is used in Linux. In case you dont know what is...
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How to sort a file using loop in Linux Bash ?
In this post, we will look at an interesting script/command to see how to sort a file’s data by using bash for loop instead of sort command. 1.Check out file...
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Difference between buffer and page cache in Linux ?
People sometimes do think that page cache and buffer cache are one and the same thing, however there is slight difference in the understanding of both. Lets have a look...
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Piyush Theorem by Piyush Goel
A New Theorem introduced by Piyush Goel with Four Proofs Mathematics for Piyush is a Passion from his childhood he was so passionate about Mathematics used to play with Numbers...
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How to live monitor dd command progress/output when we write iso/image file?
In this article, we will see an interesting tip how to monitor dd command progress on Linux. dd command does not produce any output until it completes and generates final...
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How to view a file content without comments in Linux ?
Here we will check various ways how to check a file on Linux bash shell by hiding the comments of the file and look for its content only. Ideally if...
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How to check hardware details of Linux machine ?
In this post, we will check how to view hardware details of a Linux machine. This is a very common thing and most of you might be aware, however sometimes...
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How to print ascii character set in Linux ?
In this article, we will look how to print the ascii character set in Linux. From the ascii man page, we can have its definition as: In Linux, we can...
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How to check warranty of a Dell Machine online ?
In this post, we will look how to check and verify Dell machine warranty online. 1. Get Your machine Serial Number This command collect your Product name and Serial Number....