Delete Lines in a Text File That Contain a Specific String
1 Introduction In this tutorial we ll learn how to delete lines from a file that contain a specific string using the Linux commands awk grep and sed Along the way we ll discuss their similarities and differences 2 Input File
Remove line containing certain string and the following line, To remove lines containing the string bar in the file I would like however to remove those lines and the line directly after it Preferably in sed awk or other tool that s available in MinGW32 It s a kind of reverse of what I can get in grep with A and B to print matching lines as well as lines before after the matched line
Deleting entire lines in a text file based on a partial string match
4 Answers Sorted by 31 Here s what I would do Get Content in txt Where Object notmatch not Set Content out txt Snark s line does the same but it starts with loading all of the file into an array which may be problematic with big files memory wise Share Improve this answer Follow edited Mar 20 2017 at 10 17 Community Bot 1
How to Delete Speific Lines from File in Linux Command Line, You can use a text editor like Vim or Nano enter the file and delete the desired lines However this approach is not suitable for automation using bash scripts Instead you can use the powerful sed command line editor and delete lines that match specific criteria And of course you can use sed in your shell scripts Let me show a few use cases
How to remove lines from the text file containing specific words
How to remove lines from the text file containing specific words , Alternatively to remove the lines in place one can use sed i sed i b cat rat b d filename The b sets word boundaries and the d operation deletes the line matching the expression between the forward slashes cat and rat are both being matched by the one other syntax we apparently need to escape with backslashes
Solved 1 Implement Chapter 7 Programming Project 2 From Chegg
Script Shell Delete a line from a file Super User
Script Shell Delete a line from a file Super User Script Shell Delete a line from a file Ask ion Asked 8 years 4 months ago Modified 8 years 4 months ago Viewed 192 times 1 Here is my file test txt 172 16 68 4 172 16 68 3 Here is my script bin sh ip 172 16 68 4 sed ip d 1 Please i d like to delete a line from test file but it didn t work for me Have an idea please
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How do I then delete the line containing the string in ion I ve tried the following command but to no avail sed TITLE BookDB txt dev null string bash sed Share Improve this ion Follow edited Aug 28 2015 at 20 01 Brian Tompsett 5 787 72 59 130 asked Jul 6 2014 at 10 46 Jared Aaron Loo 668 1 10 18 1 How to remove line containing a specific string from file . Syntax sed i string to delete d path to file SED is a Stream Editor having the capability to remove lines from files containing a specific string Using i with sed we can remove lines in the same file Example 1 Remove all lines from var log messages containing the string DELETE THIS TEXT and restore output in a new file Use the d directive in sed to delete a single line in a text file sed line number d file path Replace line number with the line number you want to delete and the file path with the path to the text file Use the following command to delete line 5 from the input txt file sed 5d input txt
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