[Solved] Replacing string with variable with Groovy and SED command

Question

In Groovy variable/expression substitution inside of strings (interpolation) only works with certain types of string literal syntax. Single quote syntax ('content') is not one of them. However, if you replace the outer single quotes with double quotes ("content") then you should get the interpolation effect you are looking for:

def sDescription = "foo"
def sedCommand = "sed -i 's/Description=\"[^\"]*\"/Description=\"$sDescription\"/g\'  package.appxmanifest" as String

This should give you the string that contains the command you wish to run. Please note how I changed the special character escaping (\) within the string to reflect the change in string delimiters.

Aside: As noted by @tim_yates, Why would you want to invoke a separate ad hoc process to do this substitution when Groovy contains excellent XML manipulation facilities built into the language?

Accepted Answer

In Groovy variable/expression substitution inside of strings (interpolation) only works with certain types of string literal syntax. Single quote syntax ('content') is not one of them. However, if you replace the outer single quotes with double quotes ("content") then you should get the interpolation effect you are looking for:

def sDescription = "foo"
def sedCommand = "sed -i 's/Description=\"[^\"]*\"/Description=\"$sDescription\"/g\'  package.appxmanifest" as String

This should give you the string that contains the command you wish to run. Please note how I changed the special character escaping (\) within the string to reflect the change in string delimiters.

Aside: As noted by @tim_yates, Why would you want to invoke a separate ad hoc process to do this substitution when Groovy contains excellent XML manipulation facilities built into the language?