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

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0
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2answers
30 views

Replace special characters with sed

I have to replace special characters using shell, so i use sed but i have some mistakes that i don't understand. <%_ by [@, ("_" = dash) _%> by ] for the first 2 characters my synthax is : ...
2
votes
1answer
29 views

ksh/bash Formatting Files through sed by cat file|sed command

I am new to unix platform, (Alternate Approaches can be discussed) I am trying to change the colors of content of a file conditionally. My file is: A B C D Value Value Value Value Value ...
9
votes
4answers
561 views

Is there an alternative to sed that supports unicode?

For example: sed 's/\u0091//g' file1 Right now, I have to do hexdump to get hex number and put into sed as follows: $ echo -ne '\u9991' | hexdump -C 00000000 e9 a6 91 ...
0
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1answer
26 views

replacing multi line string with another multi line string using sed

for eg. input : // copyright package com.base import com.base import com.base ... i want to replace the pattern "// copyright\n\n^package.*" with another string i'm trying to do using sed -e ...
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2answers
57 views

How to average a column in a text file without using ' character? [on hold]

I need to do it without using the ' character. I could do it like this: awk '{sum+=$5} END { print "Average = ",sum/NR}' except this contains a '.
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3answers
37 views

modify file using awk or sed

I have a text file contains ldap data in the give below format, our default structure says every user must have its own respective "home directory" but in given below i found many users have the same ...
1
vote
1answer
26 views

sed exception handling of escaped characters

I want to delete anything that follows a % to the end of the line. Using cat /tmp/foo.txt | sed 's/%.*$//' works great with one exception: I want to ignore any escaped percent signs \%. So with ...
1
vote
3answers
49 views

How to Remove Strings between two Parenthesis in Unix

I have a requirement like i have to remove the strings or numbers between two Parenthesis in a file. I used sed command but it is working on a single line. My opening Parenthesis is in one line and ...
3
votes
4answers
461 views

Is is possible to modify a file in a read only directory? [duplicate]

I have already read: Is there a way to modify a file in-place? I am curious if there is a way to modify a file in place using a command that will not create temporary files. Let's say I create a ...
3
votes
2answers
95 views

sed: inserting text before end of <HEAD> section

I need to insert some text into an HTML file before the end of the HEAD section. I'm trying: sed -i "s#</head>#<style> @page { prince-shrink-to-fit: auto } ...
1
vote
4answers
52 views

Sed substitution grouping is appending in OSX rather than the expected sub in Linux

I've got three comma separated columns. Last name, First name, social. I'm trying to capitalize all characters in the last name column using sed 's/\([^,]*\)/\U\1/' foo.file In osx this command ...
2
votes
0answers
46 views

Why doesn't sed exit immediately after writing the output?

I ran sed on a large file, and used the pv(1) utility to see how quickly it's reading input and writing output. Although pv showed that sed read the input and wrote the output within about 5 seconds, ...
0
votes
1answer
58 views

Is there a way to use sed or awk to filter data inside a zipped file? [duplicate]

Is there a way to use sed or awk to filter data inside a zipped file? When I run a sed or awk command and send to stdout the file created is 0 bytes.
0
votes
1answer
45 views

Sed working with two lines

I would like to create a sed command that takes every two lines in a document and if the first line ends with [letter or number] and the second line contains dot (.) it will join these two lines ...
1
vote
1answer
76 views

Sed command that would ignore any commented match

I'm trying to create a sed command using regex in order to substitute something in a text file only if it is not commented but I'm running into some troubles due to my almost non-existent knowledge of ...
1
vote
2answers
265 views

Why is '1,4p' outputing all the lines instead of just the first four?

I have a text file called "list" which contains some random words: he she we his her with his this this -- this this I ran this sed command: sed '1,4p' list What I thought this sed command was ...
1
vote
2answers
44 views

Insert line after matching line in sshd inside pam.d

I want to insert a line after matching line in sshd file which is present inside pam.d directory. For e.g. it should search for this line account required pam_nologin.so and it should ...
2
votes
2answers
87 views

how to grep for specific time period in a log

We work with log files that have line entries that start with a date/time format such as this: 20150408 13:29:28 <rest of text> What would I need to do in order to grep for a date range? Say ...
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0answers
24 views

seeking hints for correct escaping of sed commands WITHIN yaml

I am having a hard time finding the issue why following lines of "code" break my cloud-init config. Basically I am calling a son object as part of the DigitalOcean API which has a yam format - I got ...
2
votes
4answers
195 views

How to 'drop' characters from in front of a string?

I have a string that I would like to manipulate. The string is H08W2345678 how would I be able to manipulate it so the output is just W2345678? Similarly if the I wanted to drop the last 4 ...
0
votes
2answers
30 views

How to scrape multiple IP's and add in a script as a variable?

I am trying to add in my script an awk statement or a: if; else; then if eth0:4 is a match then put in eth0:4 IP How would you get the IP in your script as a variable if you have multiple IP's ...
4
votes
3answers
118 views

Remove duplicate lines while keeping the order of the lines

[root@server]# awk '!seen[$0]++' out.txt > cleaned awk: (FILENAME=out.txt FNR=8547098) fatal error: internal error Aborted [root@server]# The ""server"" has: 8 GByte RAM + 16 GByte SWAP, x>300 ...
3
votes
4answers
234 views

Using sed for brackets

I would like to find out, if, in my file, there is a right number of brackets. I can make my file look like (((()))()(())) ((()))() How can I use sed to compute those brackets and print yes or no ...
1
vote
1answer
48 views

Output different lines when comparing two files

I have two text files with the same number of newline terminated strings. The lines in the two files correspond to each other. The lines in each file individually might be repeated. I would like to ...
0
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4answers
56 views

How to remove line based on Delimeter in perl / Shell?

Can anyone help to remove the line in file based on delimeter(Comma), Incase if line contain less number of columns or Bad records , Need to delete those. Input File: a,b,c,d a,b,d,f c,d a,v,b,h ...
2
votes
4answers
124 views

How do I extract the first integer from text string in a column of a tab-delimited file?

I work in Medical Genetics and often have delimited text files where in one column (ex. column 5) there is a text string with a "mutation" in our jargon: c.2458C>T or c.45_46delAA or ...
0
votes
1answer
21 views

How to find & replace pattern WITHIN specific pattern using sed

IT seems that 'sed' and I will never be friends... How can I find and replace a pattern within a range (within another pattern)? In words: Find: AllowOverride None within the following range and ...
1
vote
4answers
58 views

How to recognize which ASCII character in hex is this?

We have a textfile that we want to clear from "bad" characters. If we open it with vim (with ":set number"): 57000044 zo¥<9a>¥ge¥o¥graph¥i¥cal¥ly 39999999 pariá¹<83>Å<9b>a The ...
0
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0answers
14 views

How to change the string /vol/oracdump/ with /vol/nfs_ssdb/vmcoredump using sed ? Please help me [duplicate]

How to change the string /vol/oracdump/ with /vol/nfs_ssdb/vmcoredump using sed ? Highly appreciated if I get your response.
1
vote
2answers
53 views

sed - doesn't append new line EOF and replaces letter not defined

I am experiencing a strange behavior using a sed command (got to be sed, no awk in this case) and got two questions for you, hoping someone got the skills to explain me what I am doing wrong. I want ...
5
votes
5answers
356 views

How to replace a word with new line

I have a text file with following data and each row ends with |END|. T|somthing|something|END|T|something2|something2|END| I am tryig to replace |END| with \n new line with sed. sed ...
0
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1answer
42 views

Error while passing variables for keyword match using sed

I am a beginner in scripting. I am writing a bash script for text processing where this command is giving me error: sed -e "/\<$7\>/ /\<$5\>/$6/" < "$2/$1" > "file.tmp" This is ...
0
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2answers
55 views

Find and replace values with counters [closed]

Sorry my earlier question was bit confusing... I have a file that has values like: location 100 SlotNumber ..some lines inbetween location 150 SlotNumber ..some lines inbetween location 160 ...
1
vote
1answer
36 views

Trouble with Sed Syntax

I'm modifying raw PCL/PS files (mixed) and for some reason I can't get my Sed syntax right for the true beginning that I want it to grab. Here's a sample output from the strings command: *c50B *c0P ...
1
vote
2answers
39 views

SED replace after ignoring

There are many lines in a text file and I would like to change the value true to false using a one line script. bash-3.2$ grep online test.txt # online = false --> ONE SHOT import (delete all ...
0
votes
2answers
32 views

Select lines and format

Is there a way to format the following output so that only lines 1 and the respective lines that state the "rule" name print out? Depending on the configuation, the "rule" line could vary. It could be ...
1
vote
1answer
48 views

Pattern matching and removal of that pattern using sed

I have 2 files with the following names: File 1: RvA_X-IRB-bil-CA101-0+010000-20150327212332-055582-P File 2: RvA_X-IRB-bil-CA101-1+020000-20150327212332-055582-P I am using this command to match ...
0
votes
1answer
43 views

Modify part of line if keyword is found using sed? [duplicate]

I want to modify a line if a specific keyword is found in a line. CS_CODE, SM_NUM, PORT_NUM, DEV_PORT_NUM, DIRNUM, MAIN_DIRNUM, BILL_NO, ADR_NAME In above line, if 'PORT_NUM' is present then ...
4
votes
3answers
154 views

Get last part of string after hyphen

Is there a simple command line to extract the last part of a string separated by hyphens? E.g., I want to extract 123 from foo-bar-123.
1
vote
5answers
57 views

keep out line break

I have some files with this structure: 2015-03-25 17:08:17 sysUpTimeInstance 93474;^M 1.ValueforState=2500 I want to replace the line break, and leave the third line with the second line, I mean, ...
1
vote
2answers
47 views

Parsing C Style Multiline Comment

I want to filter non-commented javascript with sed and output the line number Here is the example: /*! * jQuery UI 1.8.17 * * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about) * Dual ...
1
vote
2answers
48 views

How to list only the last line of each directory?

I learned thanks to you, how to display only the last line of a listing,e.g. ls -ltr | sed '$!d' Now I thought, how to combine it with the find command, in order to repeat this onto each directory ...
0
votes
3answers
39 views

How to display only the last line of a listing ?

Supposed I make a listing and sort the files by its temporal attribute: ls -ltr -rwxrwxrwx 1 bla bla 4096 Feb 01 20:10 foo1 -rwxrwxrwx 1 bla bla 4096 Feb 01 20:12 foo2 . . . -rwxrwxrwx 1 bla bla ...
0
votes
0answers
26 views

Would this command delete only the lines containing specific words within a delimited area? [duplicate]

Please see my previous question here. No one seems to be following up on it, so I have tried to have a go myself: sed '1 { /^---/ { :a N; /\n---/! ba; /^Title: \|^Place: /d} }' filename Would this ...
1
vote
1answer
46 views

Write text on last line of document [duplicate]

If I have this document aaa bbb ccc And I want to add " ddd" on the last line. My document should look like this: aaa bbb ccc ddd How can I do this? If I prefer awk or sed but ...
1
vote
2answers
51 views

Remove paragraph from file

I have a file (file.php) like this: ... Match user foo ChrootDirectory /NAS/foo.info/ ForceCommand internal-sftp AllowTcpForwarding no GatewayPorts no ...
0
votes
1answer
33 views

Sed a plist file gives a iilegal byte sequence

With a Unix Mac 10.9.5, French CA version I've read a lot of tips but if the error is gone, the plist is corrupted. the locale command gives: LANG="fr_CA" LC_COLLATE="fr_CA" LC_CTYPE="fr_CA.UTF-8" ...
2
votes
1answer
34 views

sed match pattern and act on x lines after

I'm trying to find a way to comment out a block (multiple lines) in a configuration file. I'd like to match the first line but also act on each line after that. sed '/\/Some\/Foo\/Bar\/String/' ...
2
votes
1answer
38 views

How to avoid sed -i to destroy symlink?

Why does sed -i executed on symlink destroys that link and replaces it with destination file? How to avoid this? eg. $ ls -l pet* -rw-rw-r-- 1 madneon madneon 4 mar 23 16:46 pet lrwxrwxrwx 1 madneon ...
1
vote
2answers
51 views

Sed move line from n° 40 to 39 position [duplicate]

I have a text file,of 100 lines,i need to move line 40 to line 39(refer to position) How to do this with sed? I tried sed '40 m 39' file and sed '40,39m' file but give me error. Thanks