Delete line with pattern match sed

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August undefined, 2024

WebTo explicitly delete everything that comes after ".com", just tweak your existing sed solution to replace ".com (anything)" with ".com": sed 's/\.com.*/.com/' file.txt I tweaked your regex to escape the first period; otherwise it would have matched something like "thisiscommon.com/something". WebApr 28, 2024 · sed 's/.*six.*/fault/' file # check all lines sed '/six/s/.*/fault/' file # matched lines -> then remove It gets the full line containing six and replaces it with fault. Example: $ cat file six asdf one two six one isix boo $ sed 's/.*six.*/fault/' file fault asdf fault fault boo It is based on this solution to Replace whole line containing a ...

Delete Lines Matching a Specific Pattern in a File using SED - Kifarunix

WebJan 11, 2024 · the goal here is to remove a book base on the name and author the user types in. I have searched around and found that sed might possibly be able to help me with this problem, I have tried to test sed by deleting base on the title alone with . sed /"foo"/d Book.txt I expected the output to be. foobar:asd:100:3:2:1 bar:test:100:2:2:2 WebMay 18, 2009 · This keeps a window of two lines in the pattern space and if the required regexp is found in either the first or second line, reads the following line and then deletes all three lines. The edge cases are if the regexp is found in either the first or last lines when there is no line before/afterward. In these cases only two lines can be deleted. haltech ecu driver registration

Replace whole line when match found with sed - Stack Overflow

WebNormally sed will read one line. N will append the second line to pattern space. If that line is empty line. the both lines are separated by newline. /^\n$/ this pattern will match that time only the d will work. Else d not work. d is used to delete the pattern space whole content then start the next cycle. WebNov 25, 2024 · The sed command above removes the version from the Ensembl stable IDs in the first column only. It does this by means of matching "ENS at the start o the line, followed by any number of alphanumerical characters, a dot and some non-quote character. The dot and the non-quote characters are discarded using a substitution. WebJul 27, 2014 · You can revert the file and then delete the line after the matche pattern (which is simple), and then revert the result, here is the code: tail -r sed '/pattern/ {n;d;}' tail -r Share Improve this answer Follow answered Jul 27, 2014 at 11:49 user3880056 25 5 in zsh and bash there is no r flag for tail. I use debian. – Timo Jan 12, 2024 at 18:46 burma front ww2

How do I delete a pattern in a column using sed command line?

Remove all lines except matching pattern line best practice (sed)

WebPython match a string with regex; RE error: illegal byte sequence on Mac OS X; Regex to get the words after matching string; I want to remove double quotes from a String; What is a regex to match ONLY an empty string? Regex for empty string or white space; Regex to match a 2-digit number (to validate Credit/Debit Card Issue number) WebIf there is a match, the (complete) line with the matching pattern and the next line get removed. The next line always appears after the line with the pattern match, but in addition it appears in other areas of the file. I am using grep and it is deleting all occurrences of the next line in the file, as expected. burma got separated from india byWebThe easiest is to load all the data into an array, skip the undesired lines then output what remains: awk ' {l [m=NR]=$0}/banana/ {for (i=NR-2;i<=NR;i++)delete l [i]}END {for … haltech electrical

"WebWhen ever I see this type of question my gut tells me this is a job for grep.However grep's ability to inverse (-v) the results when using the before & after switches (-B .. & -A ..) doesn't allow for this. However this clever approach of calling grep 2 times does it much cleaner than any of the awk or sed solutions that I've seen to date. $ grep -v "$(grep -B 4 -A 5 … " - Delete line with pattern match sed

Delete line with pattern match sed

shell - Using sed to delete all lines between two matching …

WebApr 10, 2024 · Delete Lines Matching a Specific Pattern in a File using SED. In this guide, we are going to learn how to delete lines matching a specific pattern in a file using SED. SED is a stream editor that performs basic text filtering and transformations on an … WebAug 3, 2012 · I'm trying to delete two lines either side of a pattern match from a file full of transactions. Ie. find the match then delete two lines before it, then delete two lines after it and then delete the match. The write this back to the original file. So the input data is D28/10/2011 T-3.48 PINITIAL BALANCE M ^ and my pattern is

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WebJun 28, 2024 · How to delete lines matching a pattern from a file using Tcl/Expect. Ask Question Asked 5 years, 9 months ago. Modified 5 years, 9 months ago. Viewed 3k times 0 I am trying to understand how to work with expect. I want to check if a file has a certain string in it and if it does contain it than delete the whole line, i know how i would do that ... WebThis will add one dummy line to the start, so the real pattern must be on line the 1 or higher, so the 1,/pattern/ will works - deleting everything from the line 1 (dummy one) up to the pattern. Or you can print lines after the pattern and delete the 1st, like:

WebApr 26, 2012 · sed -n '1,5p' file -n will not print by default, 1,5p means: print from line 1 to 5. sed '6,$d' file This is equivalent. It will delete from line 6 to end. sed '5q' file is again the same: quit after line 5. Typically for sed is, that commands are more easy to write than to read. Share Improve this answer Follow edited Apr 26, 2012 at 17:27 WebI'll have a go at this. To delete 5 lines after a pattern (including the line with the pattern): sed -e '/pattern/,+5d' file.txt . To delete 5 lines after a pattern (excluding the line with the pattern):

Web5 Answers. With sed the easiest way would be to first read the whole file into the pattern space and work on that: sed ':a $! {N; ba}; s/\ (^\ \n\)---\n/\n/2' filename. :a # jump label for looping $! { # if the end of input is not reached N # fetch the next line, append it to the pattern space ba # go back to :a } # after this, the whole file ... WebHow do I match a case insensitive regex and delete it at the same time. I read that to get case insensitive matches, use the flag "i". sed -e "/pattern/replace/i" filepath. and to delete use d. sed -e "/pattern/d" filepath. I've also read that I could combine multiple flags like 2iw. I'd like to know if sed could combine both i and d I've tried ...

WebSep 13, 2014 · This matches all lines containing ipsum and removes the comment from the beginning of the line. ^ matches the beginning of the line and $ matches the end. The rest of the command uses the syntax sed 's/find/replace/g' and can be called to edit a file as sed -i '/ipsum/s/^# //g' file. You can reverse this as follows: sed '/ipsum/s/^/# /g'

WebTo ignore the last n lines that match: awk -v c=${lasttoprint} '!(/PATTERN/ && NR > c)' infile . where ${lasttoprint} is the line number of the nth+1 to last match in your file.There are various ways to get that line no. (e.g. print only the line number for each match via tools like sed/awk, then tail head to extract it)... here's one way with gnu awk: burma golf clubWebApr 10, 2024 · ba # Then goto a } # End /{START-TAG/ block /ID: 222/d # If pattern space matched 'ID: 222' then delete it. Categories bash Tags bash , sed How can I add annotations below the x axis in ggplot2? haltech electrical and gasWebOct 24, 2016 · SED to remove a Line with REGEX Pattern Ask Question Asked 6 years, 5 months ago Modified 4 years, 3 months ago Viewed 38k times 12 i've got a hundreds of … burma grocery min thihlaWebApr 24, 2024 · This might work for you (GNU sed): sed 'N;/\n.*999/d;P;D' file Open a running window of two lines throughout the length of the file. If the second line of the window contains 999 delete both lines. Otherwise, print the first line of the window, delete the first line and repeat. burma government historyWebSep 21, 2024 · Use sed to delete all lines starting with pattern b after line with pattern a Ask Question Asked 2 years, 6 months ago Modified 2 years, 6 months ago Viewed 768 times 1 Given a file like: first line second line DELETE ME - third line - fourth line fifth line sixth line DELETE ME seventh line - eighth line haltech ecu to k24WebJun 7, 2016 · sed multiline delete with pattern Ask Question Asked 6 years, 9 months ago Modified 11 months ago Viewed 18k times 15 I want to delete all multiline occurences of a pattern like {START-TAG foo bar ID: 111 foo bar END-TAG} {START-TAG foo bar ID: 222 foo bar END-TAG} {START-TAG foo bar ID: 333 foo bar END-TAG} haltech elite 1500 premium harnessWebMar 15, 2016 · But sed has this nifty --in-place flag that grep does not have. sed -i '/pattern/!d' filename is much easier than grep 'pattern' filename > filename.tmp && mv filename.tmp filename – Geeklab Apr 24, 2015 at 8:19 haltech elite 2000 for sale