Bash Dynamic Variable Name, txt student1 10 student2 20 file … While environment variables can have any name (including the empty string) not containing an equal sign or a null byte, shells map environment variables to shell variables and in most shells, variable … While environment variables can have any name (including the empty string) not containing an equal sign or a null byte, shells map environment variables to shell variables and in most shells, variable … A variable in Bash is a symbolic name used to store data that can be referenced and manipulated later in the script. These powerful tools help you store and manipulate data in your shell scripts, making your command-line experience more efficient and dynamic. I would like to use dynamic variable in function. In this script, I have to declare the remote path for my SSHFS mount script. How to create a dynamic variable name In a CI container, there may be a need to delineate between … I am creating dynamic arrays which all have different letters in their name. The post provides a way to change the spool file name dynamically during a SQL script execution. At some state in the program, you want a dynamic anything to self modify … foobar_b01 foobar_b02 The variable exists. If I'd require 3 variables, variable names … Dynamic variable names in Bash I've been looking for better way of doing it recently. reference parameters are completely unsupported as of 5. You are effectively only just setting data[0]=something, because data[$key] is data[seconds_played] -> variable … LinuxQuestions. bash version : 4. For the purpose of this question, my initial array of letters has been set at a fixed length. 3). When ‘@’ is used and the expansion appears within … How can I reference a variable in bash based on another variable? Let me setup the example: package="foobar" # the variable I wish to reference is $foobar_darwin After reading the Bash man pages and with respect to this post, I am still having trouble understanding what exactly the eval command does and which would be its typical uses. Explore how to declare, assign, and manipulate variables to store and manage data efficiently. temp="$ (date +%s)" echo $temp export $ {temp} = "Test value" echo "Pass Bash uses the value of the variable formed from the rest of parameter as the name of the variable; this variable is then expanded and that value is used in the rest of the substitution, … Learn essential techniques for declaring, manipulating, and managing bash variables with practical examples and best practices for shell scripting. Learn about using variables in your bash shell scripts. Filenames are generated from runtime data for uniqueness and relevance, leveraging … 1 This question already has answers here: Dynamic variable names in Bash (21 answers) How to use a variable's value as another variable's name in bash [duplicate] (6 answers) As the name suggests, its syntax is similar to C programming language. But $1 does not seem t The bash implementation is less complete. txt I have written a shell script (variable. Dynamic Variables Dynamic variables are variables that are created during runtime; in this case, during part of the run of the Azure DevOps pipeline. The indirect variable feature works with full variables only. Understand the basics of Bash variables, including naming conventions, data types, and variable scope. For example, an array in bash can seamlessly organize number and string data … I want to access value of dynamic variable name which in effect is c_ip1, c_ip2 How do I construct this in github actions workflow ?. Get started with … New profiles should be added easily without changing the scripts, in this example there would be an implicit profile named BAZ, too, all variables to their default values. , user … Here is my bash case: First case, this is what I want to do "aliasing" var with myvarA: myvarA="variableA" varname="A" eval varAlias=\\$"myvar"$varname echo $varAlias Because bash doesn't support "arrays in arrays", I'm trying to dynamize variable name when calling arrays. Shell Functions (Bash Reference Manual)The unset builtin also acts using the same dynamic scope: if a variable is local to the current scope, unset unsets it; otherwise the unset will refer to the variable … Understanding shell variables is crucial for anyone starting their Linux journey. In the following shell code I am able to echo the key- … I want to build a convention where some secrets will be named according to the Dockerfile. log How do I iterate over a range of numbers in Bash when the range is given by a variable? I know I can do this (called &quot;sequence expression&quot; in the Bash documentation): … Dynamic variable in SHELL SCRIPT [duplicate] Asked 3 years, 2 months ago Modified 3 years, 2 months ago Viewed 955 times How to create a dynamic variable array name and fill it with multi-line text in bash script Asked 11 years, 1 month ago Modified 11 years, 1 month ago Viewed 347 times In the world of Bash scripting, understanding how to effectively use variables and their scope is crucial for writing efficient and maintainable scripts. Also, they help developers quickly comprehend the purpose and diversity of … I manage to get dynamic name resolution by using get-item to read the corresponding environment variable, allowing construction of the name of the variable and then … Explore the basics of Bash variables, including how to declare, name, and use them. avi I want to have a piece of bash code which will give me the next filename for such list: out-1. This tutorial will guide you through the process of dynamically setting Bash variables based on the evaluation of other variables. Unlock the power of variables in Bash scripting. Can you please let me know how can I do it? Basically function () { variable_$*=$SECONDS } function test echo Updated on December 10, 2024 in #linux Call a Dynamically Created Function Name in a Shell Script One use case could be to refactor a bunch of if conditions in 1 function into separate isolation functions. When naming variables in Bash scripting, you need to follow certain rules to define variables: Variable names must begin with an alphabetic letter (a-z or A-Z) or an underscore (_). See "variable indirection" under "Parameter Expansion" in man bash. Related: How to Work with Variables in Bash Accessing Variables Inside Variables You can assign a value to a variable, and then assign the name of that variable to another variable. The ! after the opening braces tells Bash to use the … By involving a variable-declaring builtin [command] such as declare, local, or export, you force Bash to perform expansions first, which expands group$i to a valid variable name … I want to generate environment variable name dynamically and set the value to that variable. specifically, to use one variable containing a number, and then a text string, and combine them together to create the name … Learn how to set variables in Bash with syntax, basic assignment, accessing values, modifying values, environment variables, scope, advanced techniques, and best practices. This powerful … Assign to a bash array variable indirectly: bash 4. 2 I used this expansion method: https video_name_1, video_path_1, video_duration_1 when the user asks to put a second video, a new set of variables should be created: video_name_2, video_path_2, video_duration_2 Repeat if a third video … Alternatively, a nameref is a special type of variable that has this behaviour automatically. Currently I am getting error if I access the … Learn essential bash scripting techniques for variable declaration, scope, and conditional testing with practical examples and best practices. This guide unveils the secrets to dynamic variable manipulation in a few simple steps. ). This guide explores setting and accessing them on Windows, Linux, and macOS, with … Is it possible in some way to have dynamic environment variables in Linux? I have a webserver where sites follow this layout: site/ qa/ production/ I would like to have an environment … This article explains the Bash `eval` command, its usage, risks, and vulnerabilities. In Bash, it's pretty straight forward to define variables as follows: > echo $FOO . How I can get the values without to use the explicite name $status_b03? I like to use something like $status_$i (the … Bash variable substitution refers to the process by which the Bash shell replaces variable names with their corresponding values during command execution. Associative array sounded like overkill This question comes from a desire to reduce some repetition in a bash script, around checking if we have something in a file and if so, loading the first line of it into a variable of … I want to create a variable with its name partly dynamic and export it from my bash shell script. log. So for example if the dockerfile is named Dockerfile the convention is that these secrets … How to use variable in the "for" loop for precise control over the script and task automation in the Bash scripting. 0 This question already has answers here: Indirectly expand variables in shell (3 answers) get environment variable by variable name? [duplicate] (2 answers) This can be frustrating when you need to inject dynamic values into environment variables for use in subsequent steps. That means you can call/access them from inside a bash function, without the need … Variables in Bash are a fundamental part of scripting. Can you please let me know how can I do it? Basically function () { variable_$*=$SECONDS } function test echo I would like to use dynamic variable in function. Is that possible, since you can can declare arrays dynamically? Bash uses the value of the variable formed from the rest of parameter as the name of the variable; this variable is then expanded and that value is used in the rest of the substitution, rather than the value … I am trying to get the user input a first time with read and get the input into the n2 variable, and then when the loop restarts ask the same read question but this time store the answer … dynamic variable name in shell script Ask Question Asked 3 years, 8 months ago Modified 3 years, 8 months ago dynamic variable name in shell script Ask Question Asked 3 years, 8 months ago Modified 3 years, 8 months ago Shivam Agrawal 2,145 5 29 43 5 possible duplicate of Bash dynamic variable names – rkhayrov Aug 2, 2013 at 14:06 But again, this is already demonstrated in the existing duplicates. There are lots of different answers attached to Dynamic variable names in bash; I have trouble believing you read it … I have a bash script in my ADO yaml pipeline that unzips a given set of files, some of these files are password protected. It'd be easy if you only had one variable name in your variable -- in that case it's just standard indirect expansion. Explore different methods including direct assignment, using the declare command, and leveraging eval for dynamic …. bash: dynamic parameters done right Imagine you’re creating a bash script and, as usual, your script ends up calling one or more command-line tools (one might argue that’s exactly … The idea to allow dynamic variables, function names, in a language that does not support one is very simple. But what if you want to define a variable, of which name is dynamic? This could be useful when the … Explore the use of dynamic variables in Bash scripting, an advanced technique that enhances script flexibility by allowing variable names to be determined at runtime. Could you show an example of "<file_name_having_5_server_names>" and "<file_name_having_6_zone_names>" , and how they relate? Dynamic variable names for an array in bash Asked 7 years, 11 months ago Modified 5 years, 7 months ago Viewed 7k times Probably a noob question, but I'm having a particular challenge where I want to dynamically generate variable names based on a value. Discover efficient techniques to streamline your command-line tasks effortlessly. Learn how to implement zero padding techniques in Bash to format data, generate file names, and improve organization and readability of your Linux-based projects. I have a lot of associative arrays and i want to use only 1 loop. Variables in Bash are used to store and manipulate data, and they … Master the art of the bash substitute with our concise guide. Also learn about special bash variables. Super useful for non-static values that may change over time: IP … But if the name of that variable was dynamic, is there any way I can access the variable value from PS? For example, the name of the variable would go into a string variable. It is more advanced than the original Bourne shell and also … Alternatively, use a language that actually has good support for multi-level and/or structured variables (like multi-dimensional arrays, or arrays/hashes where each element is another … Learn powerful techniques for dynamically executing shell commands using Bash eval, with security best practices and practical examples. Oof. This question is not about how to write a properly escaped string literal. Discover practical tips and tricks for dynamic scripting. Learn powerful techniques for indirect variable referencing and manipulation in Bash shell scripting to enhance script flexibility and dynamic programming. Variables make your scripts dynamic and adaptable to various inputs and conditions. Advanced coding in shell though possible quickly becomes a … Introduction In Bash, the ability to assign variables indirectly is a powerful technique that can greatly enhance your shell scripting capabilities. No success though. For example, I will make it a string: var="Test" I want to echo the name of var, not the value held by var. For instance all columns name from … Unlock the power of Bash with our guide on how to bash use variable in command. I can assign a value to it. Variables are essential as they … In Bash, a "string" is simply a sequence of characters (text, numbers, symbols, etc. avi out-2. Discover how to effectively use variables for dynamic and efficient scripting. The blog details using `eval` and `printf -v` in Bash scripts to create dynamic filenames for output redirection. Unlike programming languages such as C or C++, bash arrays function as the one-dimensional storage of diversified data types. They allow you to store, retrieve, and manipulate data within your scripts. What does declare name without providing any option do? Does it declare a string variable's name? What does declare -g without providing a variable name do? Does it display the … I love that Bash allows me to dynamically declare a variable or a function and then use a name reference to refer to the newly declared… Along the way, we tackled common issues that you might encounter when using bash variables, such as variable name conflicts and scope issues, and provided solutions to help you overcome these challenges. If you have a sufficiently recent version of Bash, one option is … By involving a variable-declaring builtin [command] such as declare, local, or export, you force Bash to perform expansions first, which expands group$i to a valid variable name before passing it to the builtin. The only approach I see is to declare an associative array with section names and values. This is particularly useful for dynamic scenarios, … I have a general rule that if I need indirect access to variables (ditto arrays), then it is time to convert the script from shell into Perl/Python/etc. This tutorial will guide you … Suppose that I have a variable var in bash. It’s in the official docs for Bash. In general, it's better to keep separate strings (pathnames) separate rather than to concatenate them … Naming conventions are rules and standards used in Bash scripting and coding to name variables, methods, and other programming elements. This guide will unravel the syntax of Bash function, the scope of variables within and outside of a Bash function and … Variable indirection ${!s} works with arrays only if you use both the array name and index. I couldn't find any related question that isn't about how to escape variables for direct consumption within a … Bash parses the command line first, before doing any replacements, and it is during the parse that it identifies words which are temporary environment assignments. &quot;Just&quot; referencing a variable in bash. As in, the full contents of a variable and only those contents … I need help with bash expansion. Team, I have a set of parameters that are defined inside this script-A with their default values as "DEFAULT". In Bash, dynamic variables can be created using indirect expansion. You make a nameref variable using declare -n name, and thereafter All references, … Master the art of bash set variable with indirect reference. The array name shall be a variable. This script demonstrates how to use variables in Bash (a common shell for Linux/Unix systems), how to display I'm trying to expand variables Bash. By contrast, if you want to expand a template with an arbitrary … Create array in bash dynamically Asked 13 years, 1 month ago Modified 7 years, 7 months ago Viewed 46k times I need to create a variable name on the fly then store information from a file to it e. Bourne-Again Shell (bash): It is a widely used shell for macOS and Linux operating systems. Learn how to work with Bash variables and apply best practices for effective Bash scripting. I want to make append the date to it dynamically when the cron runs in a specific format, viz, parse_sources_apr_4_2019. Please tell me where I … 4 This is how you would create a dynamically named variable (bash version < 4. In Bash (the most common shell), variables defined in the main script are global by default, meaning they‘re accessible throughout the script, including in functions. The … Bash does not support computed variables like ${abc_${def}}. There are two exceptions: in ksh93, if a function is defined with the ksh syntax function function_name { } then its local variable obey lexical/static scoping, so they are not visible in other functions called … In this tutorial, you'll learn how to pass a single or multiple arguments to a bash shell script. Unlock the secrets of bash variable expansion with this concise guide. g. I have an array … The declare builtin declares a local variable (using dynamic scope); so the variable disappears when the function returns. Something like this (which of course Loxodontus Bash Script | Dynamic Variable name and value in "dice-roller" shells and scripting Use ${var+x} to check if a variable is unset. Assigning dynamic bash variable names using a for loop seqSo I'm trying to do something, not sure if it's possible. Using ${!API_KEY} is called indirect expansion. Dynamically set environment (or secret) variable nameSelect Topic Area Question Body I am creating a re-usable workflow that will have a secrets: inherit directive. Examine Bash variables with dynamic names I’m trying to read from Bash variables … Dynamic scope Before we get to passing variables by reference in bash, we should be aware of something that is called the dynamic scope. printf '%q' can help you "shell-escape" values so that … Here, a normal variable is used to allow Bash to properly evaluate the dynamic variable name for this iteration of the loop. In Bash scripting, how you name your variables matters – adhere to the rules, and your scripts will run smoothly; break them, and you‘ll get errors. select the array for loop by a given name I want to select/build a part of the arrayname with a variable and than loop with … Dynamically append text to filenames in Bash Ask Question Asked 7 years, 3 months ago Modified 4 years, 11 months ago What is Indirection in Bash? Indirection in Bash refers to the ability to reference the value of a variable indirectly—that is, using a variable's name to access the value of another variable. Two questions: How do I get the desired … Expands to the names of variables whose names begin with prefix, separated by the first character of the IFS special variable. Associative array sounded like overkill Invoke function whose name is stored in a variable in bash Asked 10 years, 1 month ago Modified 3 years, 2 months ago Viewed 40k times To then access that value via a dynamically generated variable name # Create a variable that contains the variable name var_to_access="my-dynamic-var-name" # Read the value … In the world of DevOps and cloud automation, Bash scripts are the workhorses of EC2 instance configuration—especially when launching AWS AMIs with custom startup logic (e. ${var+x} is a parameter expansion that evaluates to nothing if var is unset, and substitutes the string x otherwise. This guide will comprehensively … Let's assume i have such files: out-1. Master this essential skill for effective scripting. avi out-3. Please tell me where I … I want to create a variable with its name partly dynamic and export it from my bash shell script. With it, you can do most things that … Using a dynamic variable when knowing which one you want is easy, but if you stored file names in these variables and wanted to join them all together, you’ll need to be able to … You are trying to expand a parameter (in this case, a variable) whose name must itself be obtained by expanding another parameter (in this case, a positional parameter). The content ist ok. When users set these parameters which are variables to any value … 64 This question already has answers here: Dynamic variable names in Bash (21 answers) Hello "foo" and "bar baz"! Above works, but only contains static variables. Inside arithmetic expansion unset variables are expanded to 0. I have three Role ARNs defined in my Bitbucket repository environment variable, named OIDC_ROLE_ARN_dev, OIDC_ROLE_ARN_stage, and OIDC_ROLE_ARN_master, … I'm trying to retrieve a value in a for loop but have failed with every effort. Env variable: I'm getting this env variable using printenv | grep proj_env_repo ( … Bash environment variables are dynamic named values that can affect the behavior of running processes and are used to store information about the user's environment, settings, and system configurations. Master variable assignment, substitution, and best practices for dynamic shell scripting. In Bash, variables that are being declared outside of a function, can be used as Global Variables. Unlike … How do I create a function named from the contents a variable? I want to write a template script that defines a function named after the script’s own file name. In the code below, I'm storing … Dynamically name array with variable during iteration over another array in BASH Asked 8 years, 7 months ago Modified 8 years, 7 months ago Viewed 877 times Learn how to declare, use, and manipulate variables in bash scripts. -------------------------------------------------- #Get code example for shell - bash dynamic variable name - Best free resources for learning to code and The websites in this article focus on coding example Discover how to effortlessly assign variables in Bash, a crucial skill for efficient shell scripting. Learn how variables elevate your scripts, making them dynamic, interactive, and … I am using PHP CLI through bash shell. Here is my code. org Forums Non-*NIX Forums Programming [SOLVED] ksh scripting: dynamic variable naming Programming This forum is for all programming questions. Should i suggest the my_apps developer to change the results method ? Dynamic variable names in Bash I've been looking for better way of doing it recently. Learn essential techniques for declaring, manipulating, and using variables in Bash shell scripting to enhance your programming skills. Users can create their functions in Bash by grouping commands under a single name. This concise guide unveils tips and tricks for mastering variables in your scripts. (I can do the The eval builtin command in Bash allows you to dynamically evaluate strings as shell commands. This guide offers a simple, step-by-step process, ensuring your scripts are powerful and … How can I retrieve a bash variable value if I have the variable name as string? var1="this is the real value" a="var1" Do something to get value of var1 just using variable a. Like most scripting language, bash also allows the use of variable. I want to retrieve array values, GNU bash 5. user1="Alice" user2="Bob" var="user1" echo "User: ${!var}" # Outputs: Alice Use … Learn essential techniques for declaring, managing, and incrementing variables in Bash scripting to enhance your shell programming skills. Learn practical applications for variable manipulation in your Bash scripts. Eg. It uses declare -n ref="$1" to set up a variable that allows you to reference another variable by name … But apparently it's writing the dynamically variables into ENV_SITE_CREATOR_NAME only: Here are the environment variables in azure What I'm missing? Update 2 According to @siddheshdesai Answer I got the … In bash, you should use an array to hold the paths as read from the user. You can potentially use this to help reduce a bunch of if conditions. I'm trying to generate dynamic var names in a shell script to process a set of files with distinct names in a loop as follows: #!/bin/bash SAMPLE1='1-first. … Bash Variables Fundamentals Bash, the Bourne-Again SHell, is a powerful scripting language that provides a wide range of features, including the ability to work with variables. Please check Manipulating an array (printed by php-cli) in shell script for details. This article will help you understand how to use arguments in bash scripts to make your scripts more flexible and reusable. Using eval, you can access the … In the following bash function I would like a new variable called PASS to be created on the first $2 occurrence and then have the new $PASS variable to be tested in Discover the art of bash string interpolation and unlock dynamic string manipulation. I have created a variable group and referenced it in my pipeline &amp; def I'm trying to read from Bash variables for which I know name suffixes, but I want to iterate through the prefixes. 0. Without using dynamic variables you can solve the same problem but you might be inclined to write … It is true that the POSIX sh shell does not have named arrays in the same sense that e. Discover how to use a bash variable in list with ease. name' SAMPLE2='2-second. Team, I am trying to implement a functionality that check content of all variables in list of predefined variables in ENV by user and then run my function with all the resulted variables as parame In the world of Bash scripting, enhancing your scripts with conditional checks is essential for creating robust and dynamic applications. avi etc. While going through a script at work today, I came across Bash’s nameref feature. Concatenation is the process of linking two or more strings end-to-end to form a new string. Bash uses the value of the variable formed from the rest of parameter as the name of the variable; this variable is then expanded and that value is used in the rest of the substitution, rather than the value o I just want to show a slightly more-thorough version of Eric Renouf's answer to make it crystal clear how you can dynamically generate a variable name from multiple other variables and then access the … Explore various methods for creating and accessing dynamic variable names in Bash, including indirect expansion, associative arrays, and `declare -n`. Therefore it will … Bash is no different. This provides powerful indirect code execution, but also risks if used carelessly. Hit the subscribe button to receive more videos like this!REFERENCE LINKS--------------- check dynamic variable name exist in bash Asked 10 years, 7 months ago Modified 10 years, 7 months ago Viewed 1k times In conclusion, I hope this will help people get their heads around dynamically named variables and dynamically named arrays in Bash. I was curious to know how to assign to a variable with another variable in its name. I wrote a shell script as below. with. I've searched but am not sure what the search terms are for what I am trying to do. There are multiple such values I want to convert dynamically. ---This video is based on the q Not sure if this will help, in bash you can use variable expansion good_var_name=${!var_containing_dynamic_name_as_value} can't help with gh actions if you need … bash: print a dynamic variable using dynamic name Asked 4 years, 11 months ago Modified 4 years, 11 months ago Viewed 62 times For example, I have a variable: env_name="GOPATH" Now I want to get the environment variable GOPATH as if like this: echo $GOPATH How can I get $GOPATH by … Now the name of the file here is parse_sources. Learn how to use variable names dynamically in bash to switch configurations based on a deciding variable like `WANTEDSYSTEM`. You'll learn various techniques to conditionally assign and manipulate … How to create a dynamic variable name In a CI container, there may be a need to delineate between different environment variable values using a prefix for a variable name. file marklist_theory. Edit The thing i need to achie Is there any bash code for making the file name from a Variable value? ex\\ x=&quot;IMP&quot; date &gt; x. sh) step by step in a way that’s clear. custom. txt output IMP. However, in my final 0 You can use declare with dynamic names and values, and variable indirection to reference variables based upon their name. It provides guidance on how to safely use `eval` by sanitizin Learn different ways to output the name of a variable instead of its value in Bash. I have been trying to do it the following way. Although these data structures are well known and simple; trying to implement … I have a few environment variables. How do I expose the variable in a bash script then consume it in a … Unlock the power of bash script $ variable to streamline your coding. Master dynamic variable management and elevate your scripting skills effortlessly. 3, thus the name that's pointed to by a variable can only be resolved using the same dynamic scoping … Environment variables are a fundamental part of the Linux operating system, acting as dynamic "key-value" pairs that influence the behavior of processes, applications, and the shell … I'm trying to generate release notes in an azure piplelines stage and push the note to an azure service bus. The blog article explains the usage of the `declare -n` command in Bash, a feature that enhances script flexibility by creating indirect references to variables. This article focuses on master file, directory, … Learn to use environment variables in software development for secure, flexible configuration management. Learn how to modify a global variable within a function in Bash with this comprehensive tutorial. Now let's assume environment variables are given dynamically, like with an associative array: declare -A … Ever needed to reference a variable whose name is stored in another variable? Bash allows this with indirect expansion using the ${!var} syntax. eval and declare -a output the same error. Dive into concise definitions that enhance your command line journey effortlessly. In this guide, we’ll demystify why direct Bash expression … The purpose was to get columns name for each table described in array tableList and put them in an array with ar_+ [table name] as array name. 3+: use declare -n to effectively create an alias ('nameref') of another variable This is by far the best option, if available: Okay so a couple of days ago I asked how to name variables dynamically. I give an example below: var1_name="variable1" var1_size="2" … I have read dynamic var in bash as keyword in stackoverflow, still i can't find out the best solution for that. In programming languages variables … I want to create an alias in bash like this: alias tail_ls="ls -l $1 | tail" Thus, if somebody types: tail_ls /etc/ it will only show the last 10 files in the directory. if statement with dynamic variable names Ask Question Asked 4 years, 5 months ago Modified 4 years, 5 months ago I can't find the syntax to assign value to associative array via dynamic name (I mean via ${arr} variable in this case). This feature is essential for writing dynamic scripts, allowing users to reuse variable … 2 This question already has answers here: Dynamic variable names in Bash (21 answers) Unlock the essence of bash define and master fundamental concepts. 1. For example, if we do Learn how to assign, export, and use bash variables with examples, including special and environment variables for your shell scripts. I'm writing a bash script that will (hopefully) redirect to a file whose name is generated dynamically, based on the the first argument given to the script, prepended to the some … I'm trying to create a dynamic name variables with the help of multiple for loop but the output says command not found. Section names are unknown beforehand. In … I need to create dynamically a variable name as follows (simplified example): #!/bin/sh IDX=1 SERIES1="a b c d e f g" SERIES2="h i j k l m n" # How to get this value contains $SERIES1 or … Level up your programming skills with exercises across 52 languages, and insightful discussion with our dedicated team of welcoming mentors. How do I use dynamic array variable names in bash? numCounter=1 arrayIndex=0 arr$numCounter[$arrayIndex]=0 ((arrayIndex++)) arr$numCounter[$arrayIndex]=1 What I'm The code above gives me the error -bash: var2_file=folder: command not found. What are the rules for naming variables in Bash? Variable names in Bash must start with a letter or underscore, followed by any combination of letters, numbers, or underscores. bash has, but it still has the list of positional parameters. aizb sovd byn vwlh tcivj arxewur prd gsnbmd cmgbhl drkog