Ruby Delete Files Matching Pattern

It s so easy with ruby to get a list of files in the current directory that i hesitate to write this but hey this blog is for me and my bad memory so here s a quick note on how to use ruby to get a list of files of a certain type in a directory.

Ruby delete files matching pattern. Ruby library for linux and mac os x. The following tutorial describe how to delete files and directories that you no longer need in your application. Using dir glob you can get a list of all the files that match a certain pattern. Please bear in mind that none of these are finalized and the dev team is looking for feedback so if you have any you can let the committers know before the feature is actually out.

In other words your program will be able to tell. Operator is ruby s basic pattern matching operator. Here are some examples. Require chilkat this example requires the chilkat api to have been previously unlocked.

If it contains a substring matching the pattern 0 9 x 0 9. It has been committed to the trunk so anyone who is interested can install ruby 2 7 0 dev and check it out. Removing single file in ruby is simple and straightforward with file delete this method deletes the named files returning the number of names passed as arguments. Pattern matching is the big new feature coming to ruby 2 7.

Ruby delete files matching pattern. When one operand is a regular expression and the other is a string then the regular expression is used as a pattern to match against the string. To have a little fun with this i ll use irb the interactive ruby shell environment to show how to do this. A string contains a number followed by an x followed by a number if and only if it contains a digit followed by an x followed by a digit i e.

The deletematching method deletes all files in the current remote directory matching a wildcarded filename. Ruby regular expressions ruby regex for short help you find specific patterns inside strings with the intent of extracting data for further processing two common use cases for regular expressions include validation parsing. Think about an email address with a ruby regex you can define what a valid email address looks like. So you re looking to remove the files whose name matches the pattern 0 9 x 0 9 0 9 x 0 9 jpg.