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Search found 720 results on 29 pages for 'sed'.

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• Using perl to parse a file and insert specific values into a database

  - by Sean

  Disclaimer: I'm a newbie at scripting in perl, this is partially a learning exercise (but still a project for work). Also, I have a much stronger grasp on shell scripting, so my examples will likely be formatted in that mindset (but I would like to create them in perl). Sorry in advance for my verbosity, I want to make sure I am at least marginally…

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• Looking for regex to extract email addresses from /etc/passwd

  - by Brent

  Most of my users have email addresses associated with their profile in /etc/passwd. They are always in the 5th field, which I can grab, but they appear at different places within a comma-separated list in the 5th field. Can somebody give me a regex to grab just the email address (delimeted by commas) from a line in this file? (I will be using…

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• awk - Remove line if field is duplicate

  - by Kyle

  Looking for an awk (or sed) one-liner to remove lines from the output if the first field matches. An example for removing duplicate lines I've seen is: awk 'a !~ $0; {a=$0}' Tried using it for a basis with no luck (I thought changing the $0's to $1's would do the trick, but didn't seem to work).

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• Can this be done by sed?

  - by SpawnCxy

  Hiall,I need to deal with a file which seems as follows: 1234 4343 5345345 53453 4343 And what I want to do is to execute follow command to the number of each line: grep $num1 ./somepath #get num1_res Then write $num1 and $num1_res to another file which will be: 1234 32 4343 234 5345345 349 53453 78 #...etc Any good solution by sed?Or…

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• Remove a special character and Insert that to a line

  - by Kraj

  How to remove a special character(#) from a big file and insert that character to a particular line for example input.tsv $22 23 24 25 26 33 33 34 35 36 44 45 46 47 48 ID ID1 ID2 ID3 ID4 Output.tsv 22 23 24 25 26 33 33 34 35 36 44 45 46 47 48 $ID ID1 ID2 ID3 ID4 I've used the…

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• Remove line from a file using a variable line number

  - by paultop6

  Hi Guys, This is probably a simple one to answer, but im stuck, so here goes sed '3d' filename (or something like tht) Im having trouble try to use a $VARIABLE instead of the number Any1 know how to get this to work , or any alternative options Regards Paul

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• how to extract lines from a file using their linenumber on unix

  - by monkeyking

  Using sed or similar how would you extract lines from a file. Like if i wanted lines 1,5,1010,20503 from a file. How would you get these 4 lines. What if I have a fairly large number of lines I need to extract. If I had a file with 100 lines each representing a linenr that I wanted to extract from another file. How would you do that. thanks

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• Delete lines containing a range pattern in 4rd columns

  - by Andrei

  In a file 4th column contains a floating point numbers dsfsd sdfsd sdfds 4.5 dfsdfsd I want to delete the entire line if the number between -0.1 and 0.1 (or some other range). Can sed or awk do that for me? thanks

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• How to search a file for a pattern and get a new file from the match point to end of file?

  - by WilliamKF

  I need to take a file and find the first occurrence of a literal string pattern as a complete line of the file: Acknowledgments: And then I wish to create a new file from the line of match all the way to the end of the file. I expect perl is a good way to do this, but I'm not much of a perl person, alternatively maybe sed is a good way? …

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• Using AWK find a smallest number in a second column bigger than x

  - by Andrei

  I have a file with two columns, sdfsd 1.3 sdfds 3 sdfsdf 2.1 dsfsdf -1 if x is 2 I want to print sdfsdf 2.1 How to express it in awk (bash or sed is fine too)

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• How do I extract lines from a file using their line number on unix?

  - by monkeyking

  Using sed or similar how would you extract lines from a file? If I wanted lines 1,5,1010,20503 from a file, how would I get these 4 lines? What if I have a fairly large number of lines I need to extract? If I had a file with 100 lines, each representing a line number that I wanted to extract from another file, how would I do that?

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• Find and replace date within a file

  - by user1629011

  My apologies if my title is not descriptive enough, I believe the following will be. I have 3 files which are just plain text, within each file, is a date Date: 2012-08-31 for example I would like to get a command/script to find this and update to the current date, but the date will be ever changing and may not be known going in (without…

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• Extract IDs from CSS

  - by nosuchip

  I've the CSS file with many entry like id1, #id2, #id3, #id4 { ... } id3, #id2 { ... } id2, #id4 { ... } I want to extract list of unique IDs using command line tools (msys). Unique means any entry in list presented only once. How? PS: I know how doing it using python, but what about awk/sed/cat?

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• add string after each line bash

  - by Jason Volkoz

  How do I add a string after each line in a file using bash? Can it be done using the sed command, if so how?

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• Killing HTML nodes from shell

  - by hendry

  Need a solution to kill nodes like <footer>foobar</footer> and <div class="nav"></div> from many several HTML files. I want to dump a site to disk without the menus and footers and what not. Ideally I would accomplish this task using basic unix tools like sed. Since it's not XML I can't use xmlstarlet. Could anyone…

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• Replace string in one file with contents of a second file

  - by jag7720

  I have two files: fileA: date >> /root/kvno.out kvno serverXXX\$ >> /root/kvno.out fileB: foobar I need to create a new file, fileC, with the same contents as fileA, except with the string XXX being replaced with the contents of fileB: date >> /root/kvno.out kvno serverfoobar\$ >> /root/kvno.out I'd like…

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• Parsing the first column of a csv file to a new file.

  - by S1syphus

  Operating System: OSX Method: From the command line, so using sed, cut, gawk, although preferably no installing modules. Essentially I am trying to take the first column of a csv file and parse it to a new file. Example input file EXAMPLEfoo,60,6 EXAMPLEbar,30,6 EXAMPLE1,60,3 EXAMPLE2,120,6 EXAMPLE3,60,6 EXAMPLE4,30,6 Desire output …

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• Adding line with text between pattern and next occurence of the same pattern in bash

  - by kasper

  I am writing a bash script that modifies a file that looks like this: --- usr1 --- data data data data data data data data data data data data --- usr2 --- data data data data data data data data --- usr3 --- data data data data --- endline --- One question is: How to add next user line --- usrn --- after last user data lines? Second…

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• How do I get Git's latest stable release version number?

  - by MattDiPasquale

  I'm writing a git-install.sh script: http://gist.github.com/419201 To get Git's latest stable release version number, I do: LSR_NUM=$(curl -silent http://git-scm.com/ | sed -n '/id="ver"/ s/.*v\([0-9].*\)<.*/\1/p') 2 Questions: Refactor my code: Is there a better way programmatically to do this? This works now, but it's brittle:…

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• Replace CR/LF in a text file only after a certain column

  - by Olav

  I have a large text file I would like to put on my ebook-reader, but the formatting becomes all wrong because all lines are hard wrapped at or before column 80 with CR/LF, and paragraphs/headers are not marked differently, only a single CR/LF there too. What I would like is to replace all CR/LF's after column 75 with a space. That would…

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• Using AWK, treate files

  - by Mat

  Hi all, I have something to do that it must be finished before 4.00PM. I want create a batch file with awk, grep or sed that keep all lines beginning with 'INSERT' and delete the other lines. After this, i want replace a string "change)" by "servicechange)" when the 3rd word in the treated line is "donextsit". I don't know how to do…

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• How to extract all IDs accessed from a mysql general log using the linux commandline?

  - by shlomoid

  This should be a trivial question for anyone who's good with bash/sed/awk. Unfortunately, I'm not, yet :) I've got a general log from MySQL which contains some queries that have a common parameter, they query on a specific id field. The queries look like update tbl set col='binary_values' where id=X; I need to process the log and…

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• Regular Expression - Capture and Replace Select Sequences

  - by Chad

  Take the following file... ABCD,1234,http://example.com/mpe.exthttp://example/xyz.ext EFGH,5678,http://example.com/wer.exthttp://example/ljn.ext Note that "ext" is a constant file extension throughout the file. I am looking for an expression to turn that file into something like this... ABCD,1234,http://example.com/mpe.ext…

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• substitute string in php from another file

  - by Gjergj Sheldija

  i have some old php files which i'd like to convert to use gettext. those files have a content like this : $LD = 'Some String'; $Another = 'some other ~n~ string'; i have to substitute all the $LD, $Another in the files where they are declared with something like : _('Some string'); hacking a bit a created some sort of…

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• Replace delimited block of text in file with the contents of another file

  - by rmarimon

  I need to write a simple script to replace a block of text in a configuration file with the contents of another file. Let's assume with have the following simplified files: server.xml <?xml version='1.0' encoding='UTF-8'?> <Server port="8005" shutdown="SHUTDOWN"> <Service name="Catalina"> …

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