Bash dynamic variable variable names Unix Linux Stack Exchange
Bash dynamic variable variable names Ask ion Asked 8 years 4 months ago Modified 1 year 5 months ago Viewed 93k times 34 I want to dynamically create a sequence of strings by manipulate an array of elements and create some arithmetic procedure
How do i use variable s value as a dynamic variable name , But what s the simplest way to get the value of that name Everything i ve tried with SITE gives me bad substitution errors echo SITE PROD echo SITE PROD echo SITE PROD echo SITE PROD and so on If i assign and reassign it ll work
How to set environment variables dynamically for command
Now let s assume environment variables are given dynamically like with an associative array declare A MY ENV FOO foo BAR bar baz Parsing the array key value pairs only works for environment values without whitespaces errors env i for k in MY ENV do printf s s k MY ENV k done envsubst
How to generate environment variable name dynamically and export it, 1 Answer Sorted by 8 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 Note that temp date s won t work because the output of date s is numeric and variable names in Bash cannot start with a number
Bash Dynamic environment variables in Linux Stack Overflow
Bash Dynamic environment variables in Linux Stack Overflow, 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 variable e g APPLICATION ENV that is set to qa when I m in the qa directory and to production when I m in the production directory
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Linux Assign to dynamic variable name in Bash Stack Overflow
Linux Assign to dynamic variable name in Bash Stack Overflow How do I assign a value to variable that has a variable in its name var1 file var2 var1 folder The code above gives me the error bash var2 file folder command not found I was curious to know how to assign to a variable with another variable in its name Version of Bash is GNU bash version 4 1 2 linux shell unix Share
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Linux Assigning dynamic bash variable names using a for loop seq Stack Overflow So I m trying to do something not sure if it s possible for i in 0 5 do if f user i then group i grep w group user0 awk print 2 p Stack Overflow About Products For Teams Stack OverflowPublic ions answers Assigning dynamic bash variable names using a for loop seq. How to dynamically set a variable name in shell script Ask ion Asked 4 years ago Modified 3 years 4 months ago Viewed 5k times 4 I am looking for a sh equivalent of the following yes really bin bash exe1 filepath n 1 var exe n echo var Where the echo should output filepath I want to use plain sh It is the magic here to define variables with dynamic names A peak of declare s man output declare declare aAfFgiIlnrtux p name value Set variable values and attributes Declare variables and give them attributes If no NAMEs are given display the attributes and values of all variables This is what you need to do
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