Regex help - match any file ending with [0-9].jpg

How do i write a regex to match anything ending with a number, then .jpg.

E.g:

10021321.jpg MATCH
1231.jpg MATCH
xxx.jpg NO MATCH
123123-resized开发者_StackOverflow社区.jpg NO MATCH

^.*[0-9]\.jpg$

will do this. This allows any characters before the final number + .jpg.

Edit: Since you only want to allow numbers and nothing else in the filename, use

^[0-9]+\.jpg$

(but this is not what you're actually asking in your question).

This should do it: ^\w*?\d+\.jpg$

Edited answer based on comments:

^\d+\.jpg$

If you want to allow only numbers (according to your comment) then do this

^\d+\.jpg$

See it here on Regexr

^ matches the start of the string

$ matches the end of the string

\d is a digit, some regex engines don't use this then replace just with [0-9]

+ is one or more times

\. the dot needs to be escaped to match literally otherwise it will match any character

What you're after is:

^\d+\.jpg$

or, if you allow non-numeric characters before the number, then:

^.*\d+\.jpg$

Ignore case variant: (?i)\d\.jpg$. If you need to match all string, use this: (?i).*?\d\.jpg$

You can use following regex for this.

^\d+?\.jpg$