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How to concatenate string variables in Bash

RoopendraSeptember 23, 2021 How to concatenate string variables in Bash2021-09-23T18:49:16+00:00 Scripting

Here are few preferred ways to concatenate string variables in bash script Concatenate string variables in Bash the variable one after another in echo #!/bin/bash var1="Techieroop" var2="${var1} Tutorial" echo "${var2}"…

How to check if a string contains a substring in Bash

RoopendraSeptember 23, 2021 How to check if a string contains a substring in Bash2021-09-23T18:22:36+00:00 Scripting

Here are the couple of methods to check if a string contains a substring in bash shell script. Methods to check if string contains a substring in Bash Method 1:…

How to check if file does not exist in Bash?

RoopendraSeptember 18, 2021 How to check if file does not exist in Bash?2021-09-19T05:38:39+00:00 Scripting

Check if file does not exist in Bash Script? You can use -f option in bash script to check if file does not exist. Check if file does not exists…

How to check if a directory exists in a bash script?

RoopendraSeptember 18, 2021 How to check if a directory exists in a bash script?2021-09-18T08:04:00+00:00 Scripting

How to check if a directory exists in a bash script? In shell script implementation you might come across use case where you need to perform some operation in a…

Shell Script Questions and Answers

RoopendraAugust 31, 2021 Shell Script Questions and Answers2021-09-18T08:30:56+00:00 Scripting

Please find below list of Shell Script Questions and Answers. Shell Script Questions and Answers 1. Given two integers, X and Y , find their sum, difference, product, and quotient. Constraints X…

Install Elasticsearch on Centos 7

RoopendraAugust 24, 2021 Install Elasticsearch on Centos 72021-09-18T13:29:58+00:00 Elasticsearch

Steps to Install Elasticsearch on centos 7 Prerequisites: Install OpenJDK 8 version sudo yum install Validate the installation java -version If you are installing jdk manually from tar file then…

Check if array contains value in shell script

RoopendraMay 27, 2021 Check if array contains value in shell script2021-09-11T20:34:20+00:00 Scripting

Check if array contains value in shell script Here is simple bash script to check if array contains value . We can iterate over array and check if value is…

How to get process ID of background process?

RoopendraOctober 30, 2020 How to get process ID of background process?2021-09-18T14:37:46+00:00 DevOPS

I usually prefer to execute process in background so that we don't need to worry if terminal got killed due to timeout or accidently. However, what if you want to…

Loop through business day and previous business day in shell

RoopendraApril 29, 2020 Loop through business day and previous business day in shell2023-04-30T04:07:42+00:00 Scripting

Shell script loop to execute some task for business day and previous business day. If previous business day is weekend then script should skip the weekend date and pick Friday…

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