How do I increment a number in middle of the string-CodePudding

I am trying to increment a number in the middle of the string. Tried many ways but didn't find a solution. Any ideas in shell script Ex:- i have a string sam_2.0_protected_dev_branch. I want to increment the number at the middle of the string. So the output should look like sam_2.0_kumar_dev_branch sam_2.1_kumar_dev_branch sam_2.2_kumar_dev_branch ...

CodePudding user response：

Maybe instead of trying to change the string, divide it in 3 parts. text, number and text. you can increment the number and then make one string with that 3 parts.

Sorry if the terminology isn't right

here is a proper documentation: https://ss64.com/ps/syntax-concat.html

Code :

$version = 1.0
$nameOne = "sam_"
$nametwo = "_protected_dev_branch"

for ($i = 1; $i -lt 5; $i  )
{ 
    $fullName = $nameOne   $version   $nametwo

    Write-Host $fullName
    $version = $version   0.1
}

Output :

sam_1_protected_dev_branch
sam_1.1_protected_dev_branch
sam_1.2_protected_dev_branch
sam_1.3_protected_dev_branch

there's a way to to force a number to show number of numbers after the comma, but I will let you deal with it

    $version = 1
for ($i = 1; $i -lt 5; $i  )
{ 
    $fullName = "sam_2."   $version   "_protected_dev_branch"
    Write-Host $fullName
    $version = $version   1
}