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How to remove duplicate lines from a file using regex?
Click the Use button to load the “delete duplicate lines” regex. On the GREP tab, specify the folder and file mask of the files you want to delete duplicates from. In the drop-down menu of the GREP button, select Execute.
How do you delete duplicate lines in Excel?
In the lookup box, type “duplicate”. Click the Use button to load the “delete duplicate lines” regex. On the GREP tab, specify the folder and file mask of the files you want to delete duplicates from. In the drop-down menu of the GREP button, select Execute.
Which is the best program to remove duplicate lines?
1. TextCrawler. TextCrawler is a very powerful freeware program that is built mainly for the task of searching and replacing data in text files. Thankfully, despite its power TextCrawler is still relatively easy to use and the remove duplicate lines option is actually found in a separate window, called the Scratchpad.
How do I remove duplicate lines in scratchpad?
To open the Scratchpad install and launch TextCrawler and go to the Tools menu > Scratchpad, or press F2. Paste the text into the window and press the Do button, the remove duplicate lines option should be selected in the drop down by default, it not select it beforehand.
How to delete blank lines in code using regular expressions?
Anyway, if you’re using a previous version of UltraEdit that doesn’t support Perl regex, to delete blank lines you can use a regular expression replace as follows. You’ll need to check the Regular expressions option in the Replace dialog. Replace With: “” (without the quotes – i.e. nothing).
How to replace a line in Notepad with a regex?
Another way to do this in Notepad++ is all in the Find/Replace dialog and with regex: Ctrl + h to bring up the find replace dialog. In the Find what: text box include your regex:.*help.*r?n (where the r is optional in case the file doesn’t have Windows line endings). Leave the Replace with: text box empty.
How to get rid of duplicate lines in Excel?
Filter All Newlines Process newlines as regular lines. Delete All Newlines Before filtering uniques, remove all newlines. Trim Text Lines Before filtering uniques, remove tabs and spaces from the beginning and end of all lines. Sort the Output Lines After removing the duplicates, sort the unique lines.
When to use DOT and star in regex?
The caret will match only at the start of a line. So the regex engine will only attempt to match the remainder of the regex there. The dot and star combination simply matches an entire line, whatever its contents, if any. The parentheses store the matched line into the first backreference.
How to get rid of duplicate lines in PHP?
Assuming the file is sorted, to have all duplicate lines together. you can do it with php by exploding each line to an array then using the array_unique to get rid of duplicate values then implode the array using as a seperator.