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  • Dynamic variable names in Bash - Stack Overflow
    Use an associative array, with command names as keys magic_variable[$1]=$( ls | tail -1 ) echo ${magic_variable[$1]} If you can't use associative arrays (e g , you must support bash 3), you can use declare to create dynamic variable names: and use indirect parameter expansion to access the value
  • bash dynamic (variable) variable names - Unix Linux Stack Exchange
    If you want to reference a bash variable while having the name stored in another variable you can do it as follows: $ var1=hello $ var2=var1 $ echo ${!var2} hello You store the name of the variable you want to access in, say, var2 in this case
  • Tricks of declaring dynamic variables in Bash - DEV Community
    In Bash, it's pretty straight forward to define variables as follows: > echo $FOO But what if you want to define a variable, of which name is dynamic? This could be useful when the variable name is only known during runtime, as user input Something like this: EOF > do_some_magic > echo $FOO1 > echo $FOO2 > echo $FOO3
  • Dynamic variables in Bash scripting - Linux Bash
    Here is a simple example to demonstrate the use of dynamic variables in a Bash script: declare var$i="Value $i" varname="var$i" echo "${!varname}" # Indirect reference to var1, var2, var3
  • How to dynamically set a variable name in shell script?
    With it, you can do most things that you'd need to do with a list in the shell For example, set -- 'filepath1' 'filepath2' 'filepath3' for name in "$@"; do # or: for name do echo "$name" done which is the same as just for name in 'filepath1' 'filepath2' 'filepath3' do echo "$name" done
  • How can I generate new variable names on the fly in a shell script?
    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 with custom name' SAMPLE2='2-second with custom name' for (( i = 1; i <= 2; i++ )) do echo SAMPLE{$i} done
  • How to Echo the Variable Name Instead of Variable Value
    In this article, we learned how to output a variable name instead of the variable value in Linux First, we reviewed the basic echo command and how to assign and display variables Next, we used the parameter expansion form ${!prefix@} to get the names of variables that begin with a certain
  • How to Echo Variables in Bash Script? [4 Practical Examples]
    Echoing variables in Bash is an essential skill for Bash scriptwriters In this article, I will explore best practices to effortlessly display variable values Whether you are a beginner or an experienced scripter, this article will equip you with the knowledge to streamline your Bash scripting
  • Bash Use Variable in Command: A Quick Guide
    In Bash, you can use variables in commands by prefixing the variable name with a dollar sign (`$`), allowing you to dynamically insert values into your scripts or commands name="World" echo "Hello, $name!"
  • command line - How to generate environment variable name dynamically . . .
    You could use printf -v to create variables dynamically, for example: temp=somename echo $temp printf -v $temp "Test value" echo $somename This will output "Test value"





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