Replace Remove Trim, LTrim, RTrim TrimStart TrimEnd Regex.Replace I had prepared a workflow file with examples and Excel file with an explanation of how you can manipulate a part of string in variables. To learn more, see our tips on writing great answers. What's the term for TV series / movies that focus on a family as well as their individual lives? Asking for help, clarification, or responding to other answers. Or explode and array_pop, split the string at the / and get just the last part. @KyleMit Cant you see? except it matches the last / and all the characters after it, This pattern will not capture the last slash in $0, and it won't match anything if there's no characters after the last slash. How can I change this code, so that the other part of the string after the last slash can be shown? Christian Science Monitor: a socially acceptable source among conservative Christians? i can't test it on powershell but it work in the regex generator. you can also normal string split $str = "http://spreadsheets.google.com/feeds/spreadsheets/p1f3JYcCu_cb0i0JYuCu123"; What is the best regular expression to check if a string is a valid URL? Approach 1: Split the string by .split () method and put it in a variable (array). To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Are you sure you want to delete this regex? So the final regex might be: (dd300\/.+?,) The parentheses are only necessary when you need to access the matched string. this regex will find "something". LWC Receives error [Cannot read properties of undefined (reading 'Name')]. How to translate the names of the Proto-Indo-European gods and goddesses into Latin? Regex to extract last item after TAB in line? ListLast( Text , '/' ) or equivalent function. For the regex, . Note: I chose to str_extract, you could also choose to str_remove. escaping the slashes that are part of the regular expression Why did OpenSSH create its own key format, and not use PKCS#8? So in this case, the regex is better IMO. Connect and share knowledge within a single location that is structured and easy to search. Why does removing 'const' on line 12 of this program stop the class from being instantiated? to match any number of trailing slashes, both / and \. The JSON file and images are fetched from buysellads.com or buysellads.net. Making statements based on opinion; back them up with references or personal experience. Can a county without an HOA or covenants prevent simple storage of campers or sheds, Can someone help me identify this bicycle? How Intuit improves security, latency, and development velocity with a Site Maintenance- Friday, January 20, 2023 02:00 UTC (Thursday Jan 19 9PM Use of ChatGPT is now banned on Super User. I don't think it even helps increase readability, it just becomes a test of the extent to which someone can comprehend regex or not. WebAssert that the Regex below does not match . Toggle some bits and get an actual square. This appears to be the quickest method! Use MathJax to format equations. Reference What does this symbol mean in PHP? Asking for help, clarification, or responding to other answers. Remove the last part $ asdf="xxx/xxxx/xxxxx/yyy" $ echo $ {asdf%/*} xxx/xxxx/xxxxx This is described in man bash: $ {parameter%word} $ {parameter%%word} Asking for help, clarification, or responding to other answers. Is this variant of Exact Path Length Problem easy or NP Complete. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. I'm trying to use a regular expression within PowerShell to remove everything from the last slash in this string; I need to remove Surname, FirstName including the /. Is there a regular expression to detect a valid regular expression? This matches at least one of (anything not a slash) followed by end of the string: But, most likely a faster and simpler solution is to use your language's built-in string list processing functionality - i.e. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. How did adding new pages to a US passport use to work? Thanks for contributing an answer to Super User! Connect and share knowledge within a single location that is structured and easy to search. Just in case that someone needs a premature optimization here http://jsperf.com/remove-leading-and-trailing-slashes/5, you can check with str.startsWith and str.endsWith Microsoft Azure joins Collectives on Stack Overflow. Super User is a question and answer site for computer enthusiasts and power users. Are the models of infinitesimal analysis (philosophically) circular? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. An adverb which means "doing without understanding", Poisson regression with constraint on the coefficients of two variables be the same. Browse other questions tagged. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Making statements based on opinion; back them up with references or personal experience. delete from nth occurrence to end of file, How to replace last occurrence of pattern in a third last line of a file, how to to delete all separators after the last string, How to remove last n characters of a particular column, Print only the lines that with all digits except the last one or the last two characters or the first or second characters, Delete last characters of strings in a txt file, regex and sed in delete all characters before two delimiter. Is it OK to ask the professor I am applying to for a recommendation letter? Wall shelves, hooks, other wall-mounted things, without drilling? How did adding new pages to a US passport use to work? Your original question specified the forward slash, but it looks like you're actually dealing with a backslash (ie, "AMER\UserName"). How we determine type of filter with pole(s), zero(s)? But it must be at the end of the line. Are there developed countries where elected officials can easily terminate government workers? How can I validate an email address using a regular expression? Find position of last occurrence of a char in a string. What kind of classification should I use? rev2023.1.17.43168. +1 for using non-regex solution. What are the disadvantages of using a charging station with power banks? (Basically Dog-people). Double-sided tape maybe? @Sardine: You could try to benchmark it yourself and find out :-) I would consider it highly probable that this is faster than regex. What does "you better" mean in this context of conversation? Why is water leaking from this hole under the sink? How do you access the matched groups in a JavaScript regular expression? /^.*\/(.*)$/ The regex is not complicated, but the syntax for removing things using it depends on the language. IMHO it makes code easier to read by using the @"\" instead of the "\\". If for example the dd300 is always follwed by two slash separated numbers it can be (dd300\/\d+\/\d+,) How to automatically classify a sentence or text based on its context? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Microsoft Azure joins Collectives on Stack Overflow. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Fields on a chess board can be identified as A1-A8 for the first column, B1-B8 for the second column and so on until H1-H8 for the last column. Card trick: guessing the suit if you see the remaining three cards (important is that you can't move or turn the cards). $url = 'http://spreadsheets.google.com/feeds/spreadsheets/p1 Thanks! Asking for help, clarification, or responding to other answers. To learn more, see our tips on writing great answers. @angel0smile thank users who answer your question by upvoting (when you're able), and selecting their answer: In R, how to remove everything before the last slash, Microsoft Azure joins Collectives on Stack Overflow. Thanks for contributing an answer to Stack Overflow! Not the answer you're looking for? Regex to remove only last slash in the URL. Not the answer you're looking for? How can citizens assist at an aircraft crash site? @PlatinumAzure - That is on the todo list! If applied the regex to the example, it does the work fine, but the problem is when the URL does not have the last slash (it occur from time to time). @MilenGeorgiev no thanks i was just saying this version of the code is less readable than the one with RegEx they are sometimes hard to understand but, Javascript regular expression: remove first and last slash, Trim only the first and last occurrence of a character in a string (PHP), Microsoft Azure joins Collectives on Stack Overflow. Is there a regular expression to detect a valid regular expression? Also, this answer turns lines with no, @Scott It depends on what you want to use the result for. How to get file name from full path with PHP? Make "quantile" classification with an expression. Connect and share knowledge within a single location that is structured and easy to search. Something). with the contents of the first capturing group. Another great idea! How Intuit improves security, latency, and development velocity with a Site Maintenance- Friday, January 20, 2023 02:00 UTC (Thursday Jan 19 9PM Were bringing advertisements for technology courses to Stack Overflow, Regular Expression for getting everything after last slash. But, most likely a faster and simpler solution is to use your language's built-in string list processing functionality - i.e. ListLast ( Text , '/' ) or equivalent function. For PHP, the closest function is strrchr which works like this: This includes the slash in the results - as per Teddy's comment below, you can remove the slash with substr: How to rename a file based on a directory name? What does and doesn't count as "mitigating" a time oracle's curse? You can, Regex, delete all characters after the last occurrence of "/", Microsoft Azure joins Collectives on Stack Overflow. Basename and dirname are great for moving through anything that looks like a unix filepath. Double-sided tape maybe? Example 1: This example using the approach discussed above. rev2023.1.17.43168. How do you use a variable in a regular expression? How do I remove a property from a JavaScript object? Why did it take so long for Europeans to adopt the moldboard plow? EDIT: If what you want is to remove everything from the last @ on you just have to follow this previous example with the appropriate regex. rev2023.1.18.43170. I don't know if my step-son hates me, is scared of me, or likes me? I need a 'standard array' for a D&D-like homebrew game, but anydice chokes - how to proceed? This may not be very useful for URIs, but may be useful for paths, in case your code needs to check/remove trailing slashes both on Windows and *NIX. The string should look like this. Afaik all regex engines work forwards, so would have to check every character. How could magic slowly be destroying the world? Here's a solution that doesn't require regular expressions: Here's another solution that doesn't require regular expressions: Take a substring of your string starting at the beginning of the string and ending before the index of the last slash in your string: This solution doesn't use regexes. Wall shelves, hooks, other wall-mounted things, without drilling? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I'm sure there's better ways to do things, than the ways I end up doing them. WebI have a dataset say. or 'runway threshold bar? Would Marx consider salary workers to be members of the proleteriat? The $+ substitution replaces the matched string with the last captured group. i.e. we could change the command to. Why are there two different pronunciations for the word Tee? When was the term directory replaced by folder? apostrophes) in the input, or whether they were escaped, and the answer didn't disclose the constraint. But this is not removing anything. How Intuit improves security, latency, and development velocity with a Site Maintenance- Friday, January 20, 2023 02:00 UTC (Thursday Jan 19 9PM removing words based on a predefined vector. check this regex http://regexr.com?2vhll How to remove up to a certain punctuation when there are same punctuations. How can we cool a computer connected on top of or within a human brain? rev2023.1.17.43168. rev2023.1.17.43168. Is this variant of Exact Path Length Problem easy or NP Complete. But, most likely a faster and simpler solution is to use your Detailed match information will be displayed here automatically. while this one would not find a match, Did Richard Feynman say that anyone who claims to understand quantum physics is lying or crazy? Can I (an EU citizen) live in the US if I marry a US citizen? What does "you better" mean in this context of conversation? Or you could use a combination of strrpos and substr, first find the position of the last occurence and then get the substring from that position up to the end. It looks for a '/', followed by zero or more characters other than a '/', followed by the end of the string. MathJax reference. How did adding new pages to a US passport use to work? How to translate the names of the Proto-Indo-European gods and goddesses into Latin? How Intuit improves security, latency, and development velocity with a Site Maintenance- Friday, January 20, 2023 02:00 UTC (Thursday Jan 19 9PM Were bringing advertisements for technology courses to Stack Overflow, what is the best way of removing start and end slashes in a string -if exist- and keep the middle ones using TypeScript/JavaScript. Find centralized, trusted content and collaborate around the technologies you use most. Is every feature of the universe logically necessary? Asking for help, clarification, or responding to other answers. How do I make the first letter of a string uppercase in JavaScript? To learn more, see our tips on writing great answers. How to translate the names of the Proto-Indo-European gods and goddesses into Latin? Use the .length property to get the length of the array. Thanks for contributing an answer to Stack Overflow! In the Pern series, what are the "zebeedees"? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. To learn more, see our tips on writing great answers. If you don't want that consider /([^/]+)$ instead. Thanks for the awesome help, I know have a much better understanding of regex. It only takes a minute to sign up. it is working on https://regex101.com/ for all (PCRE (PHP), ECMAScript, (JavaScript), Python, Golang) but it refused to work within notepad+ find replace. Update Since this is regularly proving useful for others, here's a snippet Thanks for contributing an answer to Data Science Stack Exchange! based on @ Mark Rushakoff 's answer the best solution for different cases:
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