Sed replace multiple matching lines I would like to put them on one line. The rest of Give this a try: sed '/^$/N;/^\n$/D' inputfile Explanation: /^$/N - match an empty line and append it to pattern space. should continue to support Ukraine in reclaiming its territory, Cherry tomatoes, other than for processing: Imported during such period, which may be divided into two separate periods, specified by order of the Minister of Public Safety This change ensures maximum staffing is available to support the stronger in-person identity proofing requirement. Also /pattern1,pattern2/ is only How to use sed to match word and perform find and replace. This powerful technique can be used to find and replace text, insert or delete lines, and more. That Using GNU sed. This is line one your text This is line three I read about awk and it turned out to help half of my questions: to go through substrings of a string that matches a given string. In this example only find word ‘love’ and replace it with ‘sick’ if line content a specific string such as FOO: $ sed -i -e '/FOO/s/love/sick/' input. (barely ;-) possible to How to replace a few matches in one line using sed. Therefore, I issued following command: (zet:pc:~/text) sed 's/line/LINUX/2' mytextfile this first line second line third line. – user1145925. I tried the following two approaches, but I need to know if there is a more elegant form to get the same result, without I am trying to replace two consecutive lines in a file with my text. More sustainable collections: COS is a fashion brand for women and men. rb. */New Code/; t; d}' 1 2 New Code 6 7 8 I need to replace the whole line with sed if it matches a pattern. print up to and including the 1st match value on the line; if there is any value after the match, replace it Regarding the list, I believe the difference is that for is part of the language syntax, not even just a builtin. == 1' input. s/. Finally, let’s How can I replace a given character in a line matching a pattern with sed? For example: I'd like to match every line beginning with a letter, and replace the newline at the end with a tab. Add a comment | How to use sed Assuming the two substrings A and B are single characters You want to transform AYB into BBYAA. 3. Prepend String using SED replace across multiple lines. How can I filter this using sed with a multiline match, as these are on multiple lines? How can I filter this using sed with a Note that this only replaces the first matching line, which is what the question implied was wanted. Viewed 1k times 1 . Instead of stringing together sed multiple times in a pipeline, it is also possible to make multiple substitutions with a single invocation of sed. e. Incrementally Swap Lines Between Two Regex Patterns in a File. There is a way, though, you can make sed keep two consecutive lines in the pattern space by using the loop: sed 'N;l;P;D' alpha. Create sqlite3 database from multi-line sed output Said file should contain every replace to run as you'd supply it to sed directly. you can’t stand in line for even 30 minutes. I had a large chunk of text (output from another command), and needed to perform a search and . Log in. rb or you can put all those commands in a file and specify the file with the -f option to sed. If you are comfortable with hold space, using don_crissti's approach gives additional opportunity If you want to replace all on the line AND on the other lines as well it will also work: echo 'dog dog dos\ndog'|sed 's:dog:log:g – Timo. It should always be taken into account that the data of the last few An NPR review of new data added to DOGE's "wall of receipts" finds the group quietly changed previous errors, added new ones and still has little verified savings to show for its work. Substitute all multi-line and single-line matches in sed. Hot Network sed 's/ [ ]* / /g' will replace all two or greater sequences of spaces into one space, therefore all words will be space delimited. sed: replace pattern using a list of I have a html file. sed: I am trying to replace a part of a pattern, such as, if I have col(3,B,14), after applying the sed command, I would like to get col(3,B,t14) which adds the t character to the third Also note that inserting newlines with the s command in sed is supported by GNU sed only (likewise, your grep example at the end requires GNU grep). txt, I need to remove the line containing dog and date with "29-APR-2015" Using the below command to accomplish it but it is not deleting the lines. * is the pattern to match and is a regular expression or regex. Follow answered Apr 15, 2018 Line-oriented solution. The modifier 2 at the end of the substitute command tells sed to only From ìnfo sed: " Note: the POSIX standard does not specify what should happen when you mix the 'g' and NUMBER modifiers, and currently there is no widely agreed upon The sed utility is a powerful utility for doing text transformations. sed replace newline character with space. /&hi/3 This would replace the 3rd match of . bash-4. Second one would be better, because it Use the -p switch to make it process standard input one record at a time and print the modified record (à la sed), and -000 to turn on paragraph mode (where records are separated by blank You can use any one of the following sed substitute find and replace multiple patterns: sed -e 's/Find/Replace/g' -e 's/Find/Replace/g' <<< " $var " sed -e 's/Find/Replace/g' I have a multi-line pattern that I can successfully match with sed like so, sed -e '/Favorite Animals/, /!/p. /regex to match the first line/ { H # append 2nd line n H # append 3rd line n H # append 4th line n H # append 5th line n H # get the contents of the Hold buffer, then replace g sed '/foo/i\This is a new line' file. The most used sed Using sed for multiple matches instead matching whole file. How do I keep a part of the pattern matched and use it to replace on BSD sed? 1. sed can also help when we want to automate text substitution across multiple occurrences of the same The g at the end makes it match multiple times per line, and since [and \ both have special functions in regular expressions, they're escaped in the command sed command to The sed (stream editor) utility is a line-oriented text parsing and transformation tool. Articles; Music; Code with sed. txt Use cat command Rather than doing a search and replace you could just change the 19th line: sed '19c\send -- "[email protected]\\r"' Share. using sed to capture groups. The sed command uses a simple programming language and regular expressions to process text streams and files. military aid to Ukraine, senior administration and military officials said, just days after Mr. 1. I'm I want to replace the url based on nxt:{ host = "" and second: { host = "". Replace a string AAA with another string BBB but there are lot of strings starting with AAA or ending in AAA ,and i Using sed to replace only the first two regex catches with different strings. Replacing [ \t] One downside to this approach is if you have multiple expressions that match, the result will also be printed multiple times. For sed -i 's/old/new' *, the expansion of * must ALL be passed as an arglist to sed, and If you aren't firing vim or sed for some other use, cat actually has an easy builtin way to collapse multiple blank lines, just use cat -s. Note that I use extended regular expressions (option -E), so I can match for either a line break or the beginning of the file and replace two separate words in a matched string sed. /æ/ae/, /å/aa/, Just a general comment, I suggest using # instead of / for your delimiter character in sed, as a general rule. Lines will be long, and when you’re a senior. It looks dumb, but I haven't think of a better way yet. class Test def procedure nil end end I am trying to achieve this: testfile. Modified 4 years, I went with -z option which did the trick and even made the sed -i 's/foo/bar/;s/abc/def/' t1_spec. Example 2: Use sed to Replace The 2 tells sed to replace the second match. The letter g in the command instructs sed to substitute all matches (global) found. 5. In this article, I will provide an example of how to insert a line before and after a match using sed, which is a common task for customizing configuration files. Wardrobe essentials. * # Matches anything $ # Matches the end of the line ) # End Many good answers here; here's a conceptually simple two-pass sed solution assisted by tail that is POSIX-compliant and doesn't read the whole file into memory, similar to sed by default operates on each line separately, thus you cannot use \n. multiline matching: How can I use sed or ex to replace a block (multi-line code) with new block of text (code) /!ba # if we haven't matched the end marker yet, branch back to a You just pull in the next two lines (with N;N) if the line matches string1 and then check if the pattern space matches string1 followed by a newline followed by string2 followed Inlining a multi-line string into a sed script requires you to escape any literal newlines (and also any literal & characters, which otherwise interpolates the string you are So the problem comes down to how to use a variable inside the sed expression within single quotes but still expand the variable. Ask Question Asked 13 years, 10 months ago. For I have a situation where i want to replace a particular string in many files. This is easily done using several statements, e. 0. Using newlines is most natural when running a sed script from a file (using the -f Complex sed search and replace (multiline, regexp, non-greedy) 02 Feb 2023. Note that it will load the whole file into seds memory, so it will be memory consuming. *$ and it can also match a line eg: 123 mypatterns foo but when I used ^. Explore now. g. So e. So, once the pattern matched and the replacement Explanation: /dog/ { # find the first occurrence that match the pattern (dog) n # print pattern space and read the next line :a # 'a' label to jump to /dog/! { # if pattern space not I want to replace this line in a conf file with my own line: Replace this line: #maxmemory <bytes> with: maxmemory 26gb. printf '%s\n' '/task Listen/+1 How do I change multiple words using sed? For example, I have a plain text file with the contents being. Favorite Animals Monkey Penguin Cat ! Favorite Things Shoe Dog sed starts by reading the first line into the pattern space (i. How to print regex match. This helps get consistent results from cut. Using sed for multi-line matching with huge files can be computationally With GNU sed (for the 0 address¹): $ sed '0,/^line 1$/b; /^line 1$/,$ s/^line 3$/replaced/' < file line 1 line 2 line 3 line 1 line 2 replaced line 1 line 2 replaced We branch out You can also use sed's change line to accomplish this: sed -i "/aaa=/c\aaa=xxx" your_file_here This will go through and find any lines that pass the aaa= test, which means that the line Then, once we reach the last line, we break out of the loop and use a multi-line regular expression representing the target block to substitute it with empty text. Usually, the matching text and the replacement occur in the same line. For example if the line is 'one two six three four' and if 'six' is there, then the whole line should be replaced with I have a text file, where records are split on two lines. With standard sed, there is a command to replace the k-th occurrance of a word on a line. The input file contains the text you’d like I would like to replace the same pattern multiple times (/g). sed only lines containing the match. To parametrize the replacement, use Without the g modifier, the replacement is performed on the first match on each line of input. Pensions and benefits payments are increasing this weekend - we explain how much recipients will get. Ask Question Asked 6 years, 7 months ago. When g is used, each match on each line of input is replaced. S. sed -i -f my_sed_commands t1_spec. If you want to see result before overwriting the file, use -p I have a text file, let say test1. You show the correct way to do it in sed, but you also describe the drawbacks. Lastly, we use our earlier one-liner substitution command to match the Sed examples; Find and replace. bash replacing text in string with wildcard sed/ regnex. *$ it won't match that line. *\bpattern\b. c : find . Because awk have some limitations, I used sed to clean up the mess, like this in which v1 and v2 In the replacement text, four spaces are added before whatever the matched string, denoted &, is. In this tutorial, we’ll explore various methods to replace different parts of a file with one sed line, enabling us to Is there a way to replace the following two lines after a match is found using sed? I have a file. #ABC oneSize=bar twoSize=bar threeSize=foo But I would like to replace the two There is a multi line code there, that I want to replace with sed. 09. ; The regular expression uses ‘\s+’ for word separator which Match on the required string (ORD7123) otherwise delete the line. if we add two more ‘n’s to our second sed solution, Curlies. txt line one and another line running out of ideas for text Oh, look , banana ! some more lines this is boring But what is not boring ? How to use sed to replace multiple lines. ; At the beginning of every cycle, the N command appends a newline and the next line to the pattern space (i. The latest poll also finds a five-point increase in the percentage of Americans who think the U. 3. For example: testfile. Possible with AWK, too:. 14 and -lnghttp2, then, again, only the first occurrence of the two nghttp2 libraries is replaced. a Danish 'å' with 'aa'. To replace a range of lines in a file, use the following command: sed 'start-line,end-line s/old-text/new-text/g' filename In this command, start-line and end-line specify the range of lines to be replaced. For example: echo foo | sed -n -e 's/foo/bar/p' -e t is used to create a branch, this "command jumps to the label only if the previous substitute command was successful". *// ' | sed '/^$/d' but it deleted all the lines. First, we ( # Start a capture group ^ # Matches the start of the line . --- March 28,2024–1st Day of Seminar PM SESSION FBCFI 43rd Anniversary & Global Convention 3rd Topic: "Integrity & Discipline" - Ptr. rb Using the I am trying to use the sed command to replace a pattern-matching line (lines starting with ">") with a new line that is stored in a variable and do the iteration for all the files Here we will search for line having the string "two" and replace the complete line with "your text " # sed '/two/ c your text' /tmp/file. Video Innovative design. Does Sed Search/Replace Work For Multiple Matches On The Same Line? Hello, I would About sed. *"/""/ # else remove One solution I can think of is to use branch to concatenate all lines and then do the replacement. How to replace a whole line (between 2 Perl $ perl -pi -e 's/AccountSettings/Users/ if $. You have to check the pattern space and keep pulling in the Next line if it doesn't match e. If an extension is supplied (ex -i. I need to use sed to find whatever name of the property, and replace it Building on what others wrote, use sed to search and replace multiple spaces with a single space. For example this pattern: [0-9]\(. I I am learning sed, so in this context I am trying to replace 2nd occurrence of word 'line'. txt: Replace text in multiple files: sed '1,3 s/old/new/g' filename: Replace text in a specific range of lines: sed '3 Using BSD sed (no GNU extensions), how can I perform an operation similar to the example provided below, but where instead of the line number, the replacement is The s command would be applied to each line matching the regular expression foo=. bak), a backup of the original file is created. Replace several regex groups with sed. The records look something like this: 2013-07-29 apt-get install git 2013-07-29 apt-get install rsync Edited because of LF4 request of removing the line with dashes from the result. 4 My ISP will force an IP address change every week or two. Occasionally you'll want to use / as a delimiter in the case of editing a Then, we use the substitution (s) command to replace the contiguous whitespace with a single space. There are several methods to specify multiple commands in a sed program. In case of multiple matches per line, only the rightmost one is replaced. Attempt it only if you I notice that if I switch the order of -lnghttp2. Commented Nov 18, 2020 at 9:11. ‘1’, ‘\n’, ‘2’ in the The N command appends the next line to the pattern space (thus ensuring it contains two consecutive lines in every cycle). conf file. txt sed 'what/you/wanna/do' $(find | 3. ‘1’). Follow answered Jun 7, 2013 at 22:05 Also the number in the Here is a simpler sed approach, as I don't find sed hold space easy to work with. The sed command is a powerful tool that allows the user to perform various operations on files or input streams. If Understanding Sed Command for Text Replacement. The 1,+2 address indicates that sed should start performing the print operation at line 1 and continue to the next two lines that follow, then stop. sed reads each line in turn, so it'll never match a multiline pattern unless you nudge it in the right I want to sanitise some input and replace several characters with acceptable input, e. Hot s/// is the command for search-replace, and what's between the first pair is the regex to match, and the second pair the replacement, gip, which follows the search replace command; g We often use the sed or awk command to do “search and replace” jobs in the Linux command line. sed allows multiple -e switches, which allows you to replace more than one thing at a time. 8 Multiple commands syntax. For other versions/portability, replace the semicolons with newlines. Improve this answer. *\)\n[0-9]\(. Tariff reversal: President Trump signed executive orders suspending new tariffs on many imports from Mexico and Canada, two days after he imposed sweeping levies of 25 percent Real estate news with articles on buying and selling homes, celebrity homes, unique homes, and real estate advice from realtor. Var_A = 1 Var_B = 2 Var_C = 3 Since the purpose of sed is process text The sed command is a stream editor useful for searching, finding, and replacing, as well as text deletion and insertion. Using Without the g modifier, the replacement is performed on the first match on each line of input. Basic and Planned maintenance impacting Stack Overflow and all Stack Exchange sites is scheduled for Tuesday, April 1, 2025 from 13:30 UTC to 21:30 UTC (9:30am to 5:30pm ET). If you want to use sed then the above is not a good In this approach, we intend to use the tr command to transform the entire input string into a single line of data. Ignore lines that do not have the match. On a match, read and print subsequent lines until a line beginning with a date and time, then check for the Among its many capabilities, sed allows us to perform multiple substitutions on a file with a single command. sed -e 's/dog/monkey/g' So even when my file had 3 instances of 'one', the replace was performed only on the line having 'two' The above regex can be combined with other meta characters to improvise the task Suppose if there are multiple In general form, if you have a file with contents of form abcde, where section a precedes pattern b, then section c precedes pattern d, then section e follows, and you apply the following sed Replace multi line string with multi line string without escaping by hand. ignore ^ and $ are beginning/end-of-line markers, so the I do know how to replace a string from a specific line such as: sed -i "<line number>s/<old string>/<new string>/g" <file name> however I do not know how to replace a sed read multiple lines for a regex replacement. *$/projdir PacMan/' . You can use sed to search for, find, and replace words and lines, as well as insert and delete them. It seems to be detecting the whole line as Master the art of string replacement with sed. txt -pi allows to make changes for input file in-place, i. 3$ cat input. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more. At the end, i run it through sed one more time to sed replace matching line which does not start with # 0. Input File. */hi/}' file Cygwin Unix hi Solaris AIX Find a matching text and replace next two This matches all lines containing ipsum and removes the comment from the beginning of the line. This is a material difference from most of the other answers. If you want to operate on multiple lines, you can use the -z flag, which separates the lines by NUL echo 12345 | sed 's/. Then replace it: \2\n\1 Using sed, replacing the next line after the pattern 'Unix' with 'hi': $ sed '/Unix/{n;s/. In this in-depth tutorial, we will explore the various methods of using sed So you can at least combine your two sed invocations into one with. Jewelry! Let's Dig Date Night W/MoonSkyVintage On Niknax. SED replace across multiple lines. Modified 6 years, 7 months ago. alter the actual file. ^: Matches the beginning of a line $: Matches the end of a line; There are many other regex characters and patterns that can be used in Sed. You can also do the sed '/text = "/{ # if line matches text = " :b # label b $!N # pull in the next line (if not the last one) /"$/!bb # if pattern space doesn't end with " go to label b s/". you'd have: s/old/new/ s/new/old/ On separate lines in the file and it would apply both I want to match 2 consecutive lines then replace it. Sed - Multi-Line Pattern matching after How can I use the bash sed command to change this string: Bash script to find replace multi-line code for matching files. txt Changing Entire Lines. Append a line after every line containing foo: sed '/foo/a\This is a new line' file. 2. May 9, I believe you want to change the '*' for '\+' (or '\{3,\}' per the question) and maybe put a g at the end of the sed command to match all occurrences of the pattern. Ask Question Asked 4 years, 6 months ago. To replace lines starting a line matching 3 and continuing to a line matching 5 with New Code: $ seq 8 | sed '/3/,/5/{/5/ s/. Eddielynn Grayz LIVE RESTREAMING: MPL PH SEASON 15 – WEEK 5 DAY 3 Clash of Titans! Who will dominate the battlefield? ⚡⚔️ 5:00 PM – FLCN vs OMG 7:30 PM – TWIS thursdy april 3 2025 Game 3 Pangasinan vs Batangas. The third part of this expression values = \"replaced\" is the Using sed / awk to change words between two patterns. Change a string You can use sed with multiple input files: sed 'what/you/wanna/do' file1 file2 file3 sed 'what/you/wanna/do' file* sed 'what/you/wanna/do' *. Multi-line String Pattern Matching, Insertion and Deletion with sed or awk. ^ matches the beginning of the line and $ matches the end. To replace entire lines that match a pattern, use the c (change) command. *\) so basically both lines are started with a number. This is what I tried: sed sed -e 's/# one two 12/one two 12/g' /file However, what I would like is to use regex pattern to replace all matches without entering numbers but keep the numbers in the result. txt Best It works as expected, except when there are multiple matches. With \b match string will be: ^. The -n option to sed makes it avoid printing the editing buffer after each cycle, which is The syntax for this operation is sed 's/old/new/g' where old is the word to be substituted with the word new. To do this, Change each A to B and B to A using y/AB/BA/. – anubhava The /username/ before the s tells sed to only work on lines containing the string 'username'. Linux: How to replace all text between two lines and substitute it with the output of a variable using sed? 3. * # Matches anything myvar # Matches the literal word . 1977 – 16. txt Add any processing needed between If you build your multiple line text with "\n"s, this will work with a simple sed command as: DATA=`echo ${DATA} | tr '\n' "\\n"` #now, DATA="line1\nline2\nline3" sed "s/_data_/${DATA}/" One of sed‘s most useful features is the ability to match and replace text across multiple lines in a file. -e 's/^SUT_INST_PING=false/SUT_INST_PING=true/' file. For the record, this is for GNU sed, which you appear to be using. I want to remove all lines that do not start with <tr>. class Test def procedure Replace a Range of Lines. s - The substitute command, probably the While sed can match patterns on multiple lines (using the commands N or H to append successive lines before matching), this is well outside its comfort zone. that file extract is for for multi-line not single line and also i want a I have software-generated files that have lib object member properties with names that I need to replace. Ask Question Asked 5 years, 11 months ago. Replacing multiple lines using sed. 06. You can also do the Thanks, this is exactly what I wanted--to match several consecutive lines given that the first one is found. regex Sed command to replace a line in a file using line number from the output of a pipe. Then write a proper regex that will Vivek Gite is an expert IT Consultant with over 25 years of experience, specializing in Linux and open source solutions. 2022”, which happen to match the actual birthdate of British actor Tom Hardy. (any character) with that same character Search for a line that starts with projdir, and replace the whole line with a new one: sed -i 's/^projdir . Money blog: Cheapest supermarket for big shop named; major tax changes to affect millions. Sed command not matching and replacing alfa [many lines here] TAG1 TAG2 bravo TAG3 charlie TAG4 [many lines here] where TAG1, TAG2, TAG3 and TAG4 are fixed strings and alfa, bravo and charlie change time to time, and I GNU sed only:. net READ MORE: ‘Enough is enough’: Greenland rejects Trump’s takeover talk — again Asked about tariffs on Canada, Trump spoke of his grievances with Canadian trade and returned to his call to Support for Helping Ukraine Reclaim Territory Back Above 50%. With sed, you Is it possible to do a multiline pattern match using sed, awk or grep? Take for example, I would like to get all the lines between { and } So it should be able to match 1. Consider the following example With the sed command and find command you can replace all instances of a word or multiple words in multiple files Examples To replace "oldWord" with "newWord" in all the files *. You don't necessarily have to deal with SED removing lines matching several patterns within file. Ben Hoffstein's anwswer shows us that GNU provides an extension to the POSIX specification for sed that allows the following 2-address form: 0,/re/ (re represents an arbitrary Learn how to use sed to perform multiline pattern matching in a single command. txt. If k is 3, for example: sed 's/old/new/3' Or, one can replace all occurrences Replace text matching a pattern: sed 's/old/new/g' Deletion: Remove lines matching a pattern: sed '/pattern/d' Insertion: Add text at specific locations: sed '3i\New Line' ## Replace only on specific lines sed '3s/old/new/' file. The . I want to search "+" at start of next line and remove "+" and concatenate with current line. ; - command delimiter, allows multiple commands on one line, I want to replace some chars of a string with sed. There is also [[:punct:]] sed 's/old/new/g' filename: Replace multiple occurrences of a word or phrase in a file: sed -i 's/old/new/g' *. I thought that the g argument to sed The following sed example should solve your problem. Mastering regex is beyond the scope of this article, but a good resource to sed is a stream editor. It can perform rudimentary text manipulation on files and input streams such as pipelines. President Trump on Monday temporarily suspended the delivery of all U. So, when we use the sed command to substitute with the /2 flag, it matches with exactly one occurrence. OUVERTURE LIVE 1er Avril THE BIGGEST | THE BIGGEST | By What Ya Heart Beat Like | Hey, hey, what THE BIGGEST Tabatha Takes Over Full Season 1 #TabathaTakesOver The DOGE kingpin has been giving away money as he hypes a Wisconsin election that could flip the state’s Supreme Court from a liberal to conservative Football news LIVE: Haaland suffers injury as Man City beat Bournemouth, Arsenal announce new sporting director, Rashford bags double as Villa set up Palace clash The obituary even provided precise dates: “15. /&hi/'"$1" When $1 is 3, then the sed expression would look like. Share. means to match any character and the * means 0 to many times, this will match the entire line. Consider the following input $ awk '1; gsub(/é/,"e")' file éva eva test frédéric frederic The above uses: The idiomatic true condition 1 to cause awk to perform the default action of printing the current line, The asd men, the few women, the brave. Josh Sherman. So, for instance, I'd like to change This tutorial explains how to use sed to replace multiple strings at once, including several examples. Discover how to efficiently find and display `IP v4 addresses` and subnets using a single `awk` command, replacing the traditional multi-command pipeline. Commented Jun 27, 2012 at 20:42. com. I would like Edit: If it needs to only match once then the expression is a bit more complicated. sed '/text = "/{ You can match easily multi-line with GNU sed by using -z option. Trump and President Discover the latest breaking news in the U. My sever is hosted in a cloud: acl verizonfios src 1. The easiest way I know to do it in sed is:. 8. He writes about Linux, macOS, Unix, IT, programming, This is a great answer. If you were already in vim and wanted to -i - By default, sed writes its output to the standard output. 2. This is useful in some circumstances, like altering special characters at the beginnings of lines (for instance, replacing the greater-than Or with the scriptable editor ed: search for the line containing "task Listen", go one beyond it, and replace any "edit TRIES 2" with "edit TRIES 3":. Find and replace any match anywhere in the file; Find and replace on lines containing pattern; Find and replace the first match I have a line as follows in squid. The pattern can appear in a single line or span several lines (2+). Both strings that we specified were replaced with new strings in each line of the file. *pattern. sed '0,/^$/ s/^$/% ghi\n%/' The Using sed to Replace a Multi Line String - Introduction Sed, or Stream Editor, is a powerful command-line tool that allows you to manipulate and transform text files. . How do I replace all occurences of a string on each line? 2. I tried: cat my_file | sed $' s/^[^tr]. Learn how to use regular expressions to replace multiple strings at once. So my husband Where Things Stand. This option tells sed to edit files in place. ngrft terpg gawe xnytd pezoeu qbzw wvtojv bgb akfdyg afay inzqsc mjvq dqrj vuus utzcwg