Regular expression for extracting a parameter value

Question

Given a HTTP response header contains the following parameter:

Content-Disposition: attachment; filename="myfile.pdf"

What's the regular expression in JMeter to extract the filename myfile.pdf? I've started with filename=".*" but don't know how to proceed.

Possible duplicate of [Learning Regular Expressions](http://stackoverflow.com/questions/4736/learning-regular-expressions) — Biffen, Feb 19 '17 at 16:07

score 1 · Answer 1 · answered Feb 19 '17 at 16:07

1

Try using this:

Content-Disposition: attachment; filename="([^"]+)"

Explanation:

(      capture what follows
[^"]+  any non quote character, one or more times
)      stop capture

answered Feb 19 '17 at 16:07

Tim Biegeleisen

score 1 · Accepted Answer · answered Feb 20 '17 at 05:09

1

First of all you need to surround your regular expression with parentheses like:
```
filename=(.*)
```
so JMeter would know what exactly you are trying to capture. It will extract "myfile.pdf"
If you don't need the quotation marks - add them to your regular expression like:
```
filename="(.*)"
```
Make sure you have:
- Field to check: Response Headers
- Template: $1$

References:

answered Feb 20 '17 at 05:09

Dmitri T

Though the answer from @tim-biegeleisen works perfectly fine I have chosen this as the answer because of the explanation. – Robert Strauch Feb 20 '17 at 21:43
If you read the JMeter documentation, you will see that this answer is not the most efficient solution. – Tim Biegeleisen Feb 20 '17 at 23:14

2 Answers2