Sed Delete Multiple Lines Matching Pattern, Jul 6, 2024 · In this tutorial, we’ll learn multiple methods for removing subsequent lines in a file after finding a matching pattern. See Overview of extended regular expression syntax. With sed, you can quickly and easily manipulate text files without having to write complex regular expressions. Nov 30, 2011 · I have the following command : sed -i -e '/match1/,+2d' filex, which deletes 2 lines after finding the match "match1" in the file "file x". May 11, 2018 · Possible duplicate of How to grep-inverse-match and exclude "before" and "after" lines. Lightweight and preinstalled on nearly all Unix-like systems, `sed` excels at processing text streams with pattern-based operations. Dec 11, 2025 · Find out how to use sed to delete lines from a text file using basic and advanced command examples and a hands-on approach. When the doubled word span two lines the above regular expression will not find them as grep and sed operate line-by-line. Given the sample input from the question you referenced, if the blocks are always separated by blank lines: Jan 16, 2026 · The `sed` (stream editor) command is a powerful tool for this task. Learn how to use sed to perform multiline pattern matching in a single command. Oct 29, 2021 · Do you want to delete lines matching a pattern or multiple patterns at once with Sed command. Multiline pattern match and delete lines - sed/awk/grep Ask Question Asked 8 years, 3 months ago Modified 3 years, 1 month ago Mar 23, 2026 · A practical guide to the sed stream editor on Linux, covering substitution, in-place editing, line deletion, capture groups, and real-world examples sysadmins actually use. So it will delete 2 lines after finding any of the matches, how can I achieve this ? Mar 30, 2026 · Remove lines from files with sed using line numbers, patterns, ranges, and regular expressions. Additionally, we solved the use cases by writing sed scripts that required us to work with multiple lines in the pattern space and make comparisons using regular expressions. Oct 17, 2023 · Updated on October 17, 2023 in #linux Delete Lines That Match a Pattern or the Opposite Pattern Using sed This could be useful to remove unwanted lines in a file or output, such as processing a file and writing out a new file to analyze. Mar 18, 2024 · In this tutorial, we learned how to delete multi-line text blocks using sed. This powerful technique can be used to find and replace text, insert or delete lines, and more. . Oct 18, 2023 · Want to delete specific lines from a text file? Here are some common examples of deleting lines with sed command. Covers preview mode, in-place editing, and common recipes. The accepted answer there shows how to do it with sed. By using N and D commands, sed can apply regular expressions on multiple lines (that is, multiple lines are stored in the pattern space, and the regular expression works Insert blank line above and below matching lines Delete the last line of each paragraph Print every nth line starting with x Deleting lines Delete lines matching pattern Delete all blank lines Delete all blank/whitespace lines Delete all consecutive blank lines except for end Delete all consecutive blank lines except start Oct 18, 2023 · Want to delete specific lines from a text file? Here are some common examples of deleting lines with sed command. I want to add several matches to it, like match1, match 2 . In this guide, we’ll focus on a common use case: **matching a pattern and deleting from that line to the end of the file (EOF)**. Oct 27, 2020 · I am using SED on macOS to remove all lines in the file matching 2 different patterns within it: as the result it removes the first pattern but not the second one. Here are the example commands. These methods include awk, sed, and Python code. Jun 7, 2016 · Don't use sed for anything that involves multiple lines, just use awk for a robust, portable solution. Mar 30, 2026 · Remove lines from files with sed using line numbers, patterns, ranges, and regular expressions. We would like to show you a description here but the site won’t allow us. btt, nxn71, kgp, rxvuu, xs8m9, hkwsp, r1qqp, qnkrpk, gd3ikd, cejp22d,
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