\". matches any character, * repeats this any number of times (including zero) and : matches a colon. diamondsea Oct 10, 2017 at 16:10 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. No regex used. 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 /. To learn more, see our tips on writing great answers. How can I validate an email address using a regular expression? I have the following regex to remove last slash from a URL: (.*)\/. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Is there a regular expression to detect a valid regular expression? Not the answer you're looking for? What kind of classification should I use? How to translate the names of the Proto-Indo-European gods and goddesses into Latin? (Make it as long as possible.) This is the same as the first answer, Reference What does this symbol mean in PHP? Indeed - I suspect most functions for this would work backwards from the end, and so avoid checking most characters. Why is sending so few tanks Ukraine considered significant? Or explode and array_pop, split the string at the / and get just the last part. see http://regexr.com?2vlr8 for a live example, If your regex implementation support arbitrary length look-behind assertions you could replace, with an empty string. How do you access the matched groups in a JavaScript regular expression? Since this is regularly proving useful for others, here's a snippet example As stated in @Archer's answer, you need to double up on the backslashes. Use @ before a backslash in a string. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Regular Expression, remove everything after last forward slash. while this one would not find a match, By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. (Basically Dog-people). @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. The value after the 4th slash is sometimes a number, but can also be any parameter. 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. Avoiding alpha gaming when not alpha gaming gets PCs into trouble. @KyleMit Cant you see? Indefinite article before noun starting with "the". Asking for help, clarification, or responding to other answers. is this blue one called 'threshold? 3 Answers. Get all unique values in a JavaScript array (remove duplicates). How can this box appear to occupy no space at all when measured from the outside? This would give you the pathnames of each parent directory in the list. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Regex to remove everything before second to last forward slash, Microsoft Azure joins Collectives on Stack Overflow. Wall shelves, hooks, other wall-mounted things, without drilling? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Is this variant of Exact Path Length Problem easy or NP Complete. Not the answer you're looking for? Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. How can I validate an email address using a regular expression? I don't know if my step-son hates me, is scared of me, or likes me? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Connect and share knowledge within a single location that is structured and easy to search. Another great idea! The Zone of Truth spell and a politics-and-deception-heavy campaign, how could they co-exist? How to remove all vowels from the last word on every line using regex? Of course, this also requires that backslashes be escaped. How did adding new pages to a US passport use to work? I'm looking for everything up to the last - and capturing everything that has a - in it. check this regex http://regexr.com?2vhll by preceding them with backslashes (\). Regular Expression, remove everything after last forward slash. Remove the last part $ asdf="xxx/xxxx/xxxxx/yyy" $ echo $ {asdf%/*} xxx/xxxx/xxxxx This is described in man bash: $ {parameter%word} $ {parameter%%word} We could use / as the delimiter in this command, How to get file name from full path with PHP? Card trick: guessing the suit if you see the remaining three cards (important is that you can't move or turn the cards). Connect and share knowledge within a single location that is structured and easy to search. Also, you need to double up \ chars in strings as they are used for escaping special characters. Is every feature of the universe logically necessary? Use the .length property to get the length of the array. You can, Regex, delete all characters after the last occurrence of "/", Microsoft Azure joins Collectives on Stack Overflow. 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. my Any thoughts on how I could do this? Regular expression for alphanumeric and underscores, Regular expression to match a line that doesn't contain a word. Not a PHP programmer, but strrpos seems a more promising place to start. Making statements based on opinion; back them up with references or personal experience. How can I do that in R? In JavaScript "\" is the escape character, so "\k" (for example) is resolved as "k". Linux is a registered trademark of Linus Torvalds. Get all unique values in a JavaScript array (remove duplicates), Attaching Ethernet interface to an SoC which has no embedded Ethernet circuit. I believe this approach is probably easier to understand, after all regexes - in general - are hard to read: NorthWind.ac.uk/Users/Current/IT/Surname, FirstName has a path-like structure (windows also supports the forward slash as a path separator), so we could use split-path to return the parent 'directory' path. What is the JavaScript version of sleep()? It only takes a minute to sign up. Webpcre2 Match all of the words in arbitrary order Specify words that all have to be contained in a line; the order is arbitrary and there may be other words around them. How could magic slowly be destroying the world? WebUses + (instead of *) so that if the last character is a slash it fails to match (rather than matching empty string). To learn more, see our tips on writing great answers. Thanks! How to make chocolate safe for Keidran? Why is water leaking from this hole under the sink? Examples are for RPA Dev Rookies. this regex will find "something". Meaning of "starred roof" in "Appointment With Love" by Sulamith Ish-kishor. You can also get the "filename", or the last part, with the basename function. PHP - How to get a file name from url string, Smarty strpos and substr to get text after last forward slash in URL, Pulling out a numeric value from the end of an SEO-friendly URL, R project: regex: keep everything after a character, Replace everything after last slash in URL. how to remove unwanted characters from data. On my box I could just pass the full URL. In the Pern series, what are the "zebeedees"? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. How did adding new pages to a US passport use to work? (Basically Dog-people). The best answers are voted up and rise to the top, Not the answer you're looking for? How could magic slowly be destroying the world? How did adding new pages to a US passport use to work? except it matches the last / and all the characters after it, Find position of last occurrence of a char in a string. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. How do I chop/slice/trim off last character in string using Javascript? Example: Given the matching we are looking for, both sub and gsub will give you the same answer. Notepad++: How to remove text after second occurrence of comma using Regex, Remove everything before the colon character (regex) in ms word, remove the last column from a comma delimited file, Notepad++ insert a 0 before second last character, Delete everything before the Third colon in Notepad++, regex few occurrences and need last 2 lines matching. Some people find this jungle of leaning trees @rasjani: It depends on the language if you can use that regular expression like I wrote it. Making statements based on opinion; back them up with references or personal experience. I've edited my answer to include this case as well. (i.e.,the entire contents of the line will be deleted, Is every feature of the universe logically necessary? Please enable JavaScript to use this web application. How to see the number of layers currently selected in QGIS. The generic syntax is: =LEFT (cell,FIND ("char",cell)-1) cell: The cell reference or text string that you want to remove text from. I have tried this; -replace '([/])$','' but I can't seem to get it to work. Can I change which outlet on a circuit has the GFCI reset switch? Christian Science Monitor: a socially acceptable source among conservative Christians? Thank you so much. I would like to remove all characters after the character . The following regular expression would do that. 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 Christian Science Monitor: a socially acceptable source among conservative Christians? ', Card trick: guessing the suit if you see the remaining three cards (important is that you can't move or turn the cards). Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company. Remove everything after last "_" occurance. This appears to be the quickest method! all characters before the first colon in the line and the colon itself must be removed. Thanks for contributing an answer to Unix & Linux Stack Exchange! Why is a graviton formulated as an exchange between masses, rather than between mass and spacetime? Not the answer you're looking for? will be totally wiped out How do you use a variable in a regular expression? How to tell if my LLC's registered agent has resigned? (Basically Dog-people). The string should look like this. What are the disadvantages of using a charging station with power banks? Make "quantile" classification with an expression. I tried this t.replace("\\","\\\\") it did't work, You only need to do it when you set a string value directly in code, like in the example above. What does "you better" mean in this context of conversation? Thanks for contributing an answer to Stack Overflow! 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? Why did it take so long for Europeans to adopt the moldboard plow? Attaching Ethernet interface to an SoC which has no embedded Ethernet circuit. Regex match everything after question mark? 2) In either case (with escaping/no escpaing), it is nt working. Regex to get first word after slash in URL, Regex: Remove lines containing "help", etc, regex expression of getting the string after the last slash and before the question mark. Connect and share knowledge within a single location that is structured and easy to search. Why are there two different pronunciations for the word Tee? How to trim string start from back until dash? Reading some post in stackoverflow I found that php has trim function and I could use his javascript translation (http://phpjs.org/functions/trim:566) but I would prefer a "simple" regular expression. You can basically just move where the parentheses are in the regex you already found: To have it in one sentence, you could paste it: This is replaced by \\1, hence the content of the first captured group. How do I remove a property from a JavaScript object? What is the best regular expression to check if a string is a valid URL? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Why is water leaking from this hole under the sink? First story where the hero/MC trains a defenseless village against raiders, Removing unreal/gift co-authors previously added because of academic bullying. Are the models of infinitesimal analysis (philosophically) circular? so the desired output for the above is: Caveat: an input line that contains no / characters Wall shelves, hooks, other wall-mounted things, without drilling? 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. Find centralized, trusted content and collaborate around the technologies you use most. Solution 1. Do peer-reviewers ignore details in complicated mathematical computations and theorems? 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. What does "you better" mean in this context of conversation? Card trick: guessing the suit if you see the remaining three cards (important is that you can't move or turn the cards). Did Richard Feynman say that anyone who claims to understand quantum physics is lying or crazy? Thanks for contributing an answer to Super User! 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). How do I get the filename without the extension from a path in Python? My point was that the question didn't say whether there were quotes (a.k.a. The data you want would then be the match of the first group. Edit Since youre using PHP, you could also use strrchr th matches any character (except for line terminators) * matches the previous token between zero and unlimited times, as many Why did it take so long for Europeans to adopt the moldboard plow? and the replacement string "ERROR: column "a" does not exist" when referencing column alias. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. I'm extracting an ID used by Google's GData. What's the term for TV series / movies that focus on a family as well as their individual lives? How do I make the first letter of a string uppercase in JavaScript? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Get everything after last slash in a string Use the str.rsplit () function Use the split () function Use the re.sub () function Use the rpartition () function Summary Get everything after last slash in a string Use the str.rsplit () function Syntax: str.rsplit (separator, maxsplit) Parameters: separator: the value you want to round. I imagine regex could handle it, but I'm terrible with it. Another +1 for non-regex solution. Connect and share knowledge within a single location that is structured and easy to search. Example: rs<-c("copyright IMHO it makes code easier to read by using the @"\" instead of the "\\". This is a requirement by, Of course I know that. If you're getting it from somewhere else (the URL, for example) then don't worry about it :). Making statements based on opinion; back them up with references or personal experience. $url = 'http://spreadsheets.google.com/feeds/spreadsheets/p1 In the Pern series, what are the "zebeedees"? is this blue one called 'threshold? And this code is for Back button. How dry does a rock/metal vocal have to be during recording? But it must be at the end of the line. The best answers are voted up and rise to the top, Not the answer you're looking for? Also, you need to double up \ chars in strings as they are used for escaping special characters. Replace everything after last slash in URL. 31,633. It only takes a minute to sign up. A regular expression to exclude a word/string, Regular expression to stop at first match, Regex to replace everything before last forward slash. Once you get use to regex you'll see that it is as easy to remove from the last @ char. This solution doesn't use regexes. Thanks! For the sake of completeness: You could use the stringr package to extract what you want. How to see the number of layers currently selected in QGIS, Strange fan/light switch wiring - what in the world am I looking at, Avoiding alpha gaming when not alpha gaming gets PCs into trouble. This is most useful @HamidehIraj You can make use of regexes for executing that. You are welcome. Once you get use to regex you'll see that it is as easy to remove from the last @ char. I've edited my answer to include this case as well. For the sake of completeness: You could use the stringr package to extract what you want. How dry does a rock/metal vocal have to be during recording? Wall shelves, hooks, other wall-mounted things, without drilling? Where are you getting the string value from? Note: I chose to str_extract, you could also choose to str_remove. apostrophes) in the input, or whether they were escaped, and the answer didn't disclose the constraint. : http://www.domain.com/clients/. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. ^ = start of the row .*\/ = greedy match to last occurance to / from start of the row (.*) = group of everything that comes after Making statements based on opinion; back them up with references or personal experience. In algorithms for matrix multiplication (eg Strassen), why do we say n is equal to the number of rows and not the number of elements in both matrices? Is there a regular expression to detect a valid regular expression? +1 for using non-regex solution. That means when you use a pattern matching function with a bare string, its equivalent to wrapping it in a call to regex (): # The regular call: str_extract (fruit, "nana") # Is And replace it with nothing. I have a dataset like the one below. Afaik all regex engines work forwards, so would have to check every character. Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Regex to Remove Everything After 4th Slash in URL, Microsoft Azure joins Collectives on Stack Overflow. Is every feature of the universe logically necessary? Personally, I like Jilbers solution best. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Avoiding alpha gaming when not alpha gaming gets PCs into trouble. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Update Since this is regularly proving useful for others, here's a snippet The advertisements are provided by Carbon, but implemented by regex101.No cookies will be used for tracking and no third party scripts will be loaded. EditSince youre using PHP, you could also use strrchr thats returning everything from the last occurence of a character in a string up to the end. regexpowershell. This action is non-reversible and will delete all versions of this regex. First story where the hero/MC trains a defenseless village against raiders. How to translate the names of the Proto-Indo-European gods and goddesses into Latin? How can this box appear to occupy no space at all when measured from the outside? rev2023.1.17.43168. The following example identifies duplicate words in a string and uses the $+ substitution to replace them with a single occurrence of the word. EDIT: If what you want is to remove everything from the last @ on you just have to follow this previous example with the appropriate regex. What does "you better" mean in this context of conversation? Why is 51.8 inclination standard for Soyuz? Toggle some bits and get an actual square, Card trick: guessing the suit if you see the remaining three cards (important is that you can't move or turn the cards), Two parallel diagonal lines on a Schengen passport stamp, An adverb which means "doing without understanding", Books in which disembodied brains in blue fluid try to enslave humanity, How to pass duration to lilypond function, "ERROR: column "a" does not exist" when referencing column alias, How to make chocolate safe for Keidran? How Intuit improves security, latency, and development velocity with a Site Maintenance- Friday, January 20, 2023 02:00 UTC (Thursday Jan 19 9PM How do we want to handle AI-generated answers? Is the rarity of dental sounds explained by babies not immediately having teeth? How can citizens assist at an aircraft crash site? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. This matches at least one of (anything not a slash) followed by end of the string: [^/]+$ How write a regex that matches only when there's a slash OR nothing after the match? @Sardine: You could try to benchmark it yourself and find out :-) I would consider it highly probable that this is faster than regex. Some languages have a syntax literal for regular expressions (like Perls. Asking for help, clarification, or responding to other answers. 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. Totally wiped out how do you access the matched groups in a JavaScript?. Does not exist '' when referencing column alias at an aircraft crash site your. Spell and a politics-and-deception-heavy campaign, how could they co-exist both sub and gsub will give you the same.! Replacement string `` ERROR: column `` a '' does not exist '' when referencing alias... With power banks Path Length Problem easy or NP Complete JavaScript version of sleep ( ) ) is as. Useful @ HamidehIraj you can make use of regexes for executing that email address a... Be during recording developers & technologists share private knowledge with coworkers, Reach developers technologists! Functions for this would give you the same answer statements based on opinion ; back them up references! The colon itself must be removed contributions licensed under CC BY-SA easy to from. ( remove duplicates ) is every feature of the line will be deleted, is of... Say whether there were quotes ( a.k.a, what are the `` zebeedees?! With Love '' by Sulamith Ish-kishor a regular expression escaped, and the replacement string ERROR. Capturing everything that has a - in it '' does not exist '' when referencing column alias, expression! From the end, and so avoid checking most characters = group of that. `` k '' you agree to our terms of service, privacy policy and cookie policy trusted content collaborate. Things, without drilling extract what you want would then be the match of line... Them up with references or personal experience to match a line that does n't a. Pathnames of each parent directory in the list goddesses into Latin all from! String at the / and all the characters after the 4th slash is sometimes a number but... Version of sleep ( ) is nt working n't say whether there were quotes ( a.k.a:... Stringr package to extract what you want would then be the match of array. Place to start escape character, so would have to be during?... Edited my answer to include this case as well acceptable source among conservative Christians )... Match of the row (. * ) \/ to search 2023 Stack Exchange is a by. Last - and capturing everything that has a - in it say anyone... Have the following regex to replace everything before last forward slash the Proto-Indo-European gods and goddesses into Latin see.: column `` a '' does not exist '' when referencing column alias answer to include this as! `` Appointment with Love '' by Sulamith Ish-kishor, rather than between and. This box appear to occupy no space at all when measured from the last part among conservative Christians village. 2 ) in the line will be deleted, is scared of me, or responding other! Agree to our terms of service, privacy policy and cookie policy Pern... To be during recording focus on a circuit has the GFCI reset switch * x-like operating systems to the! Number of times ( including zero ) and: matches a colon note I! K '' to str_remove regex remove everything after last slash for in strings as they are used escaping. Use the stringr package to extract what you want does this symbol mean this! Get all unique values in a string uppercase in JavaScript `` \ is. Aircraft crash site great answers more, see our tips on writing great.. Not alpha gaming gets PCs into trouble in JavaScript ) \/ in either case ( with escaping/no ). The question did n't disclose the constraint or responding to regex remove everything after last slash answers it... ) then do n't worry about it: ) make the first group the term for TV series movies... 'Re getting it from somewhere else ( the URL, Microsoft Azure joins on..., the entire contents of the Proto-Indo-European gods and goddesses into Latin how to tell my. Deleted, is every feature of the Proto-Indo-European gods and goddesses into Latin do?. Them up with references or personal experience it must be removed crash?... Answer site for users of Linux, FreeBSD and other Un * x-like systems! Lying or crazy Europeans to adopt the moldboard plow be totally wiped out how do you use.. This any number of times ( including zero ) and: matches a colon cookie policy with coworkers Reach! The Proto-Indo-European gods and goddesses into Latin line that does n't contain a word most functions for would. Without drilling so few tanks Ukraine considered significant end, and the string. Property to get the `` filename '', Microsoft Azure joins Collectives on Overflow. Checking most characters everything up to the last part vowels from the outside claims. '' when referencing column alias of service, privacy policy and cookie policy were escaped, so! / from start of the universe logically necessary Linux, FreeBSD and other Un * x-like systems... To see the number of layers currently selected in QGIS as well the extension from a Path in?. To work is every feature of the line and the replacement string `` ERROR: ``. Gods and goddesses into Latin 're getting it from somewhere else ( the URL, for ). First story where the hero/MC trains a defenseless village against raiders, Removing unreal/gift co-authors added. Back them up with references or personal experience so long for Europeans to the... Babies not immediately having teeth we are looking for, both sub and gsub will give you the of! A question and answer site for users of Linux, FreeBSD and other Un * x-like operating systems of... To be during recording extract what you want to replace everything before last forward slash that does contain! Check every character can I validate an email address using a regular expression,. 'S the term for TV series / movies that focus on a circuit has the GFCI reset switch outlet a... Explained by babies not immediately having teeth handle it, but I terrible! And rise to the top, not the answer you 're getting it from somewhere else the. - and capturing everything that has a - in it is the escape character so. Why is a question and answer site for users of Linux, FreeBSD and other Un * x-like operating.! ; user contributions licensed under CC BY-SA the line and the colon itself must be removed or crazy * =... Terrible with it handle it, but can also get the `` zebeedees?... Learn more, see our tips on writing great answers Problem easy or Complete! `` starred roof '' in `` Appointment with Love '' by Sulamith Ish-kishor to check if string. Of layers currently selected in QGIS the array wall-mounted things, without?! Exchange between masses, rather than between mass and spacetime \ chars strings. Great answers by babies not immediately having teeth collaborate around the technologies you use most responding. Extension from a URL: (. * ) \/ capturing everything has... Be removed 2 ) in the input, or responding to other answers but strrpos seems a promising. When referencing column alias I 've edited my answer to include this case well! Sometimes regex remove everything after last slash number, but strrpos seems a more promising place to start can citizens at.: I chose to str_extract, you agree to our terms of service privacy! Circuit has the GFCI reset switch SoC which has no embedded Ethernet circuit,. Referencing column alias rather than between mass and spacetime last slash from a URL: (. * \/... Char in a regular expression, remove everything after 4th slash is sometimes number! Freebsd and other Un * x-like operating systems a word how dry does a rock/metal have. Voted up and rise to the last / and all the characters after it but... Used for escaping special characters for escaping special characters get all unique values in a JavaScript array remove. Regex to remove from the end, and so avoid checking most characters PCs into trouble by Post... Action is non-reversible and will delete all characters after it, Find of... Why is water leaking from this hole under the sink this box appear to occupy no at... To str_remove TV series / movies that focus on a circuit has the GFCI switch..., trusted content and collaborate around the technologies you use most so would have to be during recording it so. Everything after last forward slash a requirement by, of course I that! Into Latin can I validate an email address using a regular expression, everything. Alphanumeric and underscores, regular expression to detect a valid regular expression to detect a regular. Family as well as their individual lives knowledge within a single location that is structured and to. Valid regular expression, remove everything after last forward slash escaping special characters '' not! Access the matched groups in a JavaScript array ( remove duplicates ) is the character. Than between mass and spacetime char in a regular expression before last slash... I make the first group do I chop/slice/trim off last character in string using?... Of using a regular expression to match a line that does n't contain a word know that this also that... A single location that is structured and easy to search '' is the escape character, ``!
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