sed is a command-line stream editor for filtering and transforming text.

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490 views

Regex and piped commands with sed

I'm finding really hard to use sed command, plus I can't seem to find well written tutorials. Let me say that I worked with regular expression in other languages (Python, JavaScript, Java), so that ...
2
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2answers
19k views

How can I replace text after a specific word using sed?

I have a file named .ignore. In need to replace the projdir. For example: ignore \..* ignore README projdir Snake I need to replace Snake with, for example, "PacMan". I read the man page, but I ...
2
votes
1answer
369 views

sed edit text block: not greedy match

I wish I can grab the first html comment in a file using sed. Using '/<!--/,/-->/ and having more than one comment block it will match all the content between the first and the last comment ...
2
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2answers
4k views

Replace matches with multiline string using sed [duplicate]

Possible Duplicate: Insert a multiline string into another string I have a file called foo.txt containing: foo bar baz I want to replace every occurence of bar with a multiline string, ...
2
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2answers
638 views

Deleting specific lines and duplicates from a 11gb wordlist text file

I have an 11gb wordlist file which is already sorted as each word is on its own line. I need to remove duplicates and lines starting from 077. I guess I need to run sed and sort -u together but I ...
2
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2answers
433 views

Get row data for non-matching column values

I want to read the file (1600 rows) and get rows only the columns have different values (sno1, sno2, sno3 & sno4-should be not be equal value) and it should be above 50%.The example of output ...
2
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2answers
2k views

How can I delete lines that has an empty first column?

INPUT: CC2352345|m,safnlasndfmnyxdcvyxcvyxcv |klasjdf |3|lasdjflasdf| |2345567356 CC3543353|asdfasdffghntz |klasjdf |3|lsajdfl | ...
2
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3answers
1k views

Change character position with sed

The file contains: dateutkfilename25012009 I want to change the position of character 16th to 17th with 18th to 19th. And then change position of character 16th to 19th with 20th to 23rd... so it ...
2
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3answers
36 views

How to edit next line after pattern using sed?

Using sed, how do I search for a line ending with foo and then edit the next line if it starts with #bar? Or put another way, I want to remove a comment # from the next line if it starts with #bar ...
2
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3answers
37 views

`pwd`, but omit first n directories

pwd gives the full path of the current directory, for example: /first/second/third/anotherdir/thefinaldirectory How can I omit the first n, let's say three directories, so that only /anotherdir/...
2
votes
1answer
72 views

Find and replace using parts of the found string in the replace string

Let foo be any string. I have to search a file for all occurrences of \LeftLabel{foo} and replace each occurrence with \LeftLabel{\textsf{foo}} but only if foo does not start with a $ ...
2
votes
1answer
102 views

Grepping and sedding IP from ip addr show

I'm trying to get just the local IP of my Arch VM. I've managed to get just the line containing what I want with grep, but I also want to trim it down with sed. inet <<192.168.0.16>>/24 ...
2
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1answer
205 views

How to find and replace using sed text containing a star *

I would like to find and replace text within many .procmailrc files, and using grep and sed. I would like to remove the following line (including the new line break at the beginning) from the ....
2
votes
2answers
167 views

Refactor code using sed

How do I write a sed script the rearranges/refactors a string of characters of a file? The contents of my file are: for(int i=0; i<old(a, 10); i++) { sum += old(c*c, i*a) } ...
2
votes
1answer
76 views

Sed: replace text keeping digit occurrence

I have some text like: Blablabla <b>[intlink id="</b>2204<b>" type="page"] Blalala I want replace it for remove the </b> and <b>, keeping the id="number". So it should ...
2
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2answers
513 views

Extract multiple instances of text between two words inclusive of starting word but exclusive of ending word

A PDB file contains numerous paragraphs of conformations of a protein. Each conformation starts with the keyword ATOM and ends with keyword END. I am trying to read the file in bash such that I ...
2
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2answers
128 views

print empty line in sed output when passing multiple filenames

I'm doing some placeholder replacements in various files that I'm feeding to ldapadd, to add new entries to an LDAP directory: sed \ -e 's/%%FOO%%/whatever/g' \ -e 's/%%BAR%%/other thing/g \ ...
2
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2answers
58 views

Awk - keep word “example” and “EXAMPLE” with one input

I am attempting to to only keep customers that contain certain words. Here is an example < newname.txt awk 'BEGIN {FS=","} $7~/USA|United States/' > usa.txt The problem I am having is if they ...
2
votes
4answers
73 views

remove the content from the beginning to the first blank line

I'm trying to remove the content from the beginning of the text to the first blank line. --($:~)-- cat example.txt pedro pablo juan francisco emiliano martin So, I would delete: pedro pablo ...
2
votes
1answer
133 views

How do I properly escape this long su + sed command?

#!/bin/bash wineuser=tom su $wineuser -c "sed -i '$ialias ptgui "wine ~/.wine/drive_c/Program\ Files/PTGui/PTGui.exe\"' /usr/people/$wineuser/config/cshrc.csh" The acutal line inserted to tom's ...
2
votes
3answers
196 views

Reformat date string

I am trying to figure out how to reformat a file full of wrongly formatted dates. The source looks like this: {"_id":"","timestamp":"Mon Apr 20 08:30:55 +0000 2015"} {"_id":"","timestamp":"Mon Apr 20 ...
2
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2answers
904 views

Get current timezone on Centos 7

On previous version of centos , i used the following command to get the current timezone in my bash script timezone=$(sed 's/ZONE=//g' /etc/sysconfig/clock) Output is "America/New_York" How can i ...
2
votes
2answers
95 views

Search and Replace question

I need to find all occurrences of AAsomeArbitraryStringBB and replace it with CCsomeArbitraryStringDD. So AAHelloBB Text AAByeByeBB becomes CCHelloDD Text CCByeByeDD. It's important to note ...
2
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2answers
115 views

How to avoid that an insertion pattern using sed is applied to the middle of a string?

Aim The aim is to convert the following string: hello_hello,123-world567-helloworld123456,world1234-hello09876 using sed into a specific format. Attempts sed -e 's|^\(hello_[a-z0-9]\{3\}\)\(.*\)|...
2
votes
2answers
115 views

Parse several thousand lines of txt into lines and columns

The file at hand lists names, credentials, roles, and privileges for thousands of users. It was passed onto me as .xls but the lines and columns are not arranged in proper form. I have reformated ...
2
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2answers
314 views

Print a line in stdout that matches an expression if the output contains another expression

This might be a common/easy task but I couldn't figure out from examples on the web or manuals of awk/sed/grep. So, here is the scenario: There is an internal command line tool that prints out a ...
2
votes
2answers
87 views

Sed/awk/perl: modify text preserving parts and align to a column

I have a text like this: A1JOURNEY0TO1 .BYTE 00, 00, 00 A2JOURNEY0TO2 .BYTE 00, 01, 00 A3JOURNEY1TO0 .BYTE 00, 01, 01 I need to have: JOURNEY_01 ; 00 TO ...
2
votes
1answer
772 views

sed lines after match and before next match

How to get all the lines after a matching word till the next different matching word? For example, my input looks like below. 1 2 3 5 6 and I need to sed from 1 to 5 and in my output I need to ...
2
votes
4answers
203 views

replace several comma out side one or more sets of curly braces and exception that in one or more sets of curly braces

In the text file I have multi records. Every record has multi column with comma separated, some column have one sets of curly brace and other have more than one curly brace. I need: If a comma is ...
2
votes
2answers
137 views

Live replacement, while viewing log using LESS

It's very convenient to monitor logs using less command - you see what is going with your system as it happening. The bad thing is that my logs are optimized for grep tool: each atomic action is ...
2
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4answers
745 views

sed load substitute from file

I'm attempting to replace a pattern in a file with the complete contents of another file using sed. Currently I am using: sed "s/PATTERN/`cat replacement.txt`/g" "openfile.txt" > "output.txt" ...
2
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2answers
215 views

Delete all words surrounded by parentheses with sed

How can I do this in sed, I have a long long list of things and some are surrounded by a parentheses. lol xml lol lol (347) idiot (67) How can delete (347) and (67) but for a huge list with numbers ...
2
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2answers
1k views

Format output to a specific line length

So I have some output that has very long lines, and I want to have it formatted to lines no more than 80 columns wide, but I don't want to split words because they are in the column limit. I tried ...
2
votes
1answer
350 views

What package has GNU sed for Solaris?

I need to use the features of GNU sed, instead of the built-in version under Solaris 10. Which GNU package contains it? I don't see it listed in the coreutils, and my Google searches haven't helped ...
2
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2answers
247 views

Formatting a floating point variable in a SED statement

As part of a makefile recipe, I want to repeatedly adjust a few lines in some text file txt.in. In particular, I want to update, among others, the third line which contains simply two numbers ...
2
votes
2answers
270 views

Sed : Delete between the first n lines the ones with a given string in them

I have given a string and a file. I have to delete between the first 30 lines the ones having the given string. Tried something like sed -i '/pattern/1,30d' filename Yet it gives errors. More ...
2
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1answer
66 views

sed's c command outputs current line no matter what

Here's what I do: $ echo '1 2 3' | sed -n ' x c\ test x ' test test test Is it expected behavior? I'm running gnu sed 4.2.1.
2
votes
1answer
130 views

How to sed and put back the part of the match? [duplicate]

So these are the original texts: $ printf 'bbb\nb2b\n' bbb b2b This is what I'm doing $ printf 'bbb\nb2b\n' | sed 's/^b[0-9]/XXX/g' bbb XXXb And this is the output that I want :D $ printf 'bbb\...
2
votes
2answers
63 views

join sed output

I'm looking to somehow pass the output of the following command: $ sed -n '5p' file-A into $ sed '5 c\ > "string extracted from previous sed command" file-B So basically, I want to replace ...
2
votes
3answers
95 views

Sed - string substitution with groupings

I have a largish directory with filenames formatted like Some_Folder-(FOL001)-clean what I'm trying to do is display the pattern between the brackets at the start like FOL001 Some_Folder-(FOL001)-...
2
votes
1answer
82 views

Matching two different lines that are at least N lines distant from each other

I would like to match files that contain try (in one line) and consecutive catch (in another line) at least N lines later (to find very long try-catches and try to get rid of them). I mean, the first ...
2
votes
1answer
503 views

How to use awk or sed to convert csv diffs into more readable format

Can anyone give me the example of how to use awk or sed (not sure which one, as I haven't use either of these much, as I have mostly been using grep and cut to work with csv data) to convert ...
2
votes
1answer
57 views

How can i change the format of text using sed?

cat > inputfile X1 a1,b1,c1,d1.................. dn X2 a2,b2,c2,d2.................. and so on upto n ................................................ .................................................
2
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4answers
306 views

AWK Search massive file and write to variable name

I want to pull data that I will need to reformat from a simulation file I am working with to prepare it as input for running other simulations. The target data is an optimized chemical z-matrix. The ...
2
votes
2answers
1k views

sed command to leave two decimals and remove the rest after comma

I have a numeric value, for example 19.3478 or 22.456 or 10. I would like to remove extra decimals if there are more than two decimals, so that there is never more than two decimals after the comma. ...
2
votes
2answers
851 views

How can I find matches with sed (or similar) for configuration parameters?

I'm pretty good at using php's preg_match (and similar) commands, and I'm also pretty good with regular expressions, but I don't do very well with sed. I have two shell scripts I'm working on and I'd ...
2
votes
1answer
5k views

sed special character replace not working in shell script

I want to write a script 'test.sh' that will take a user's input and replace all special characters with a '\' + the character. My script: #!/bin/bash echo 'input='"$1" arg=`echo "$1" | sed 's:[]\[\^...
2
votes
2answers
663 views

How to Wrap a file with Tags in Bash

I have an xml file named test.xml, without a root tag like this: <cat></cat> <name></name> <id></id> <cat></cat> <name></name> <id>&...
2
votes
2answers
373 views

How do I add an if statement (regarding punctuation in a word) to this bash script

I have this bash script #!/bin/bash cat $@ | while read line do for word in $line do echo $word | circling-the-square # here's where i need to add the if statement: #...
2
votes
1answer
3k views

Variable substitution into a sed script

After running this code #!/bin/bash rm -f myfile myfile-individual echo "Greetings, foobar!" > myfile MYSTRING="Jack" cat myfile | sed 's:foobar:$MYSTRING:' > myfile-individual we end up with ...