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

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2answers
46 views

Change a string with sed

After using a filter to get a list of process like the next one: FOO_AAAAA_00001 FOO_BBBBB_00001 FOO_ABABAB_0000 FOO_ABCCDAA_00 FOO_12345678_0 FOO_JJJ_00001 FOO_VLLLL_00001 FOO_KKAKAA_00001 The ...
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3answers
110 views

sed to remove all after a string?

I'm trying to use sed to remove the rest of a line after: HTTP1.1" 200 I can't figure out how to get sed to understand I want that whole thing as a string to match, including the double quote and ...
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1answer
41 views

How do I get an acceptable last modified timestamp for my Jekyll site using a shell script?

I would like to be able to provide last modified timestamps to my Jekyll posts and pages using a shell script. The problem is that I do not know how to automatically generate an acceptable timestamp. ...
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6answers
42k views

Can sed replace new line characters?

Is there an issue with sed and new line character? I have a file test.txt with the following contents aaaaa bbbbb ccccc ddddd The following does not work: sed -r -i 's/\n/,/g' test.txt ...
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2answers
32 views

sed + add comment to IP - only if IP is matched exactly

my target is to add "#" to the IP's with sed, But Only if IP is matched exactly!!! for example: sed 's/72.16.90.12/#72.16.90.12/g' /etc/hosts more /etc/hosts 72.16.90.121 host1 ...
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1answer
38 views

sed + update 4 different IP's in hosts file in one sed command

how to run the follwoing sed command in one command line? sed -i s'/12.1.0.11/#12.1.0.11/g' /etc/hosts sed -i s'/12.1.0.12/#12.1.0.12/g' /etc/hosts sed -i s'/12.1.0.21/#12.1.0.21/g' /etc/hosts ...
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2answers
72 views

How to replace multiple blank lines with a specific non-blank line?

The sample input is 1 2 3 4 5 6 7 8 9 The expected output is 1 2 3 --- 4 5 --- 6 7 8 --- 9
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2answers
263 views

split a large file to new file with unique file names

I need to split a file into unique file names. I can do it with sed command eg, sed -n '/scaffold135_/w 135-scaf.txt' input file.txt but it's time consuming so I need a smart way to do it faster. ...
0
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1answer
30 views

Remove file name when recursively counting number of occurrences of a pattern

When I run my grep command: grep -rc 'PATTERN' . it prints out the number of lines that the pattern occurs, but it looks like this: ./hotel_232424.dat:234 and so on... How would I remove the ...
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4answers
10k views

sed on OSX insert at a certain line

So I've been using 'sed' on linux for a while, but have had a bit of difficulty trying to use it on OSX since 'POSIX sed' and 'GNU sed' have so many little differences. Currently I'm struggling with ...
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2answers
50 views

Collecting network information

I need to collect information about the network usage of each process. Nethogs presents the data I need in real time, I am trying to save the output to a file in order parse it and plot the data. ...
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3answers
38 views

List out the original IP Address of the host

I have following content in the file. I would like to print the IP address which is Under Name. Server: 17.128.100.12 Address: 17.128.100.12#53 Name: Testserver1 Address: 17.146.118.156 ...
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1answer
22 views

How do I use sed to change },{“Foo” to }\n{“Foo”?

I have a 55MB JSON file with a huge number of objects that are separated by },{. I would like to have one object per line and get rid of the comma. For one thing, I'd like to be able to look at the ...
3
votes
1answer
37 views

grep output of cdrecord

I would like to parse the output of cdrecord/wodim using grep. cdrecord -v outputs lines like Track 01: 49 of 75 MB written (fifo 100%) [buf 100%] 10.2x. The problem is that cdrecord uses ...
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4answers
54 views

Print only unique lines from file not the duplicates

I have a sorted words list, line by line file like so: apple apple grapes lime orange orange pear pear peach strawberry strawberry I only want to print out unique lines and drop duplicates: grapes ...
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1answer
58 views

How to remove date format

I have the following content in the file. I would like to remove dates and the underlines from the file using sed. let me know if this would be possible to do with grep either. Can someone assist on ...
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2answers
42 views

Convert all text in a file to uppercase using sed and interested to use range operator [duplicate]

I am trying to : Convert all text in a file to uppercase using sed and interested to use range operator. can some one please help me here. content of Sample.text: unix is great os. unix is ...
0
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2answers
30 views

Joining certain lines of text together before modifying them

I have a cricket commentary like - 0.3 Richardson to RG Sharma, 2 runs, gentle, non-swinging length ball on off, Rohit seeks to pick it up. Hit high on the bat and spooned over the returning Mitch ...
5
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4answers
18k views

Convert all text from uppercase to lowercase and vice versa?

My question is how can I convert all text from uppercase to lowercase and vice versa? That is to change the cases of all the letters. It has to be done with a sed replacement somehow.
1
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1answer
44 views

how can i comment out/in a section in source code with sed or awk

Currently i have files, which contain sections like this code statement1 code statement2 # BEGIN SOMENAME some code some other code # END SOMENAME code statement n +1 code statement n +1 What i ...
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2answers
78 views

Save file after using sed command

I am using following command to replace yyyymmdd to YYYYMMDDHH24MISS in my file: sed -e 's/\('yyyymmdd'\)/\('YYYYMMDDHH24MISS'\)/g' filename After I run the command in PuTTY, it displays the file ...
0
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1answer
42 views

delete line that contains a case insensitive match

I have a file that contains information as so: 20 BaDDOg 31 baddog 42 badCAT 43 goodDoG 44 GOODcAT and I want to delete all lines that contain the word dog. This is my desired ...
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votes
4answers
2k views

Match two words that is on the same line

The command that I have prints out two of the lines whenever FW_6.0.0 is found, below is the code: grep -oP 'FW_6.0.0, (.*)$' file Below is the output, both has the same value of FW_6.0.0 ...
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3answers
77 views

Split a file based on required string

I have test file with the below contents: CREATE TABLE XYZ ( ABC INT, CDE CHAR(10), . . . ); Similarly, REPLACE VIEW XYZ ( ABC, CDE, EFG ); CREATE TABLE XYZ_1 ( ABC INT, CDE CHAR(10), . . . ); ...
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5answers
625 views

Grep value from json file

my json file looks something like this [{"product":"Apple","id":"2134"},{"product":"Mango","id":"4567"}] I want to grep/sed/awk 'id' for given 'product'. Output: Enter product : Apple Your ...
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1answer
42 views

Linux + capture only the IP's from mount command

please advise how I can to print only the list of the IP's ( in the end of the lines ) , from mount output mount netapp64:/lunggg/OracleTeam/OracleCDs on /oracds type nfs ...
1
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2answers
187 views

sed insert character at specific positions

I have hundreds of *.txt files which have a common format. I can insert a comma at a specific position in one file, how can I generalize the below code to apply this operation at several places for ...
1
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1answer
48 views

splitting file based on values in specific column

I have a file that I would like to break up into multiple files with uniq values for the first column. For example, here is a file: fileA.txt 1 Cat 1 Dog 1 Frog 2 Boy 2 Girl 3 ...
2
votes
1answer
26 views

grep awk or sed a CSV Row containing a certain part of a web address

I am trying to clean up a Squid log file and I want to delete rows with a website containing "/0/" in the 11th column. An example: Row1: column1, column2, column3...column10, ...
0
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1answer
89 views

Split string into array and print each element on a new line with commandline

I'm having a String which is seperated by commas like a,b,c,d,e,f that I want to split into an array with the comma as seperator. Then I want to print each element on a new line. The problem I'm ...
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2answers
83 views

How to find one word and sequentially replace it?

I am running AIX 5.3(not by choice, but I cannot change it), and I have a text file: servers.txt Here is an example of the file's contents: apple port1 username password IPAddress TCP banana port2 ...
3
votes
3answers
138 views

Retrieving lines from a file depending on other lines

Imagine the following file structure: foo.bar.1 blabla moreblabla relevant=yes foo.bar.2 relevant=no foo.bar.3 blablabla foo.bar.4 relevant=yes I want to retrieve all foo.bar lines where within the ...
8
votes
7answers
451 views

Convert rows to columns

I have a file that includes details about VMs running in a hypervisor. We run some command and redirect the output to a file. And the is data available in the below format. Virtual Machine : OL6U5 ...
0
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3answers
71 views

How to find specific csv files and extract their second row into a single csv file

I'm trying to find out how to filter specific csv files by name and then extract their second row into a single csv file. I'm not sure whether it is a good idea to find files and then pipe it with ...
2
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4answers
476 views

How to delete everything after a certain pattern or a string in a file?

Suppose I have a list of URLs in a text file: google.com/funny unix.stackexchange.com/questions isuckatunix.com/ireallydo I want to delete everything that comes after '.com'. Expected Results: ...
4
votes
3answers
3k views

with sed, how can I replace word within a matching line?

I am trying to write a sed expression to detect lines similar to this: s0:12345:respawn:/sbin/agetty -8 -s 115200 ttyS0 linux and replace the ttys0 with something_else I do not want to detect ...
1
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2answers
413 views

Extract data between two matched patterns in a binary file

I am trying to extract a jpeg image from a binary text file. I want to extract all data between 0xFF 0xD8 (start of image) and 0xFF 0xD9 (end of image) inclusive. Earlier, I have successfully run the ...
10
votes
8answers
696 views

sed in-place line deletion on full filesystem?

Due to an application bug as yet undiagnosed, I have several hundred servers with a full disk. There is one file that has been filled up with duplicate lines—not a log file, but a user environment ...
2
votes
2answers
2k views

How do I move a line in a text file up or down by one line?

I have some text files, and I'd like to be able to move an arbitrary line in any of the files up or down one line (lines at the beginning or end of the file would stay where they are). I have some ...
0
votes
3answers
96 views

How to group a bunch of rows based on information from the first row?

I have a data file looks like : 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 3 . . . 1 0 4 4 3 1 2 0 0 0 3 1 1 2 1 1 1 1 1 1 0 1 1 3 . . . 0 0 0 0 0 0 0 3 3 1 1 2 3 2 1 2 2 3 1 2 3 1 2 2 . . . ...
0
votes
2answers
109 views

How to cut every line from a particular string?

input.txt: john_Apple01_xyz_1 john_Fruit_Apple01_abc_c1 john_Apple21_trs_1 john_Fruit_Apple21_efg_1 john_Fruit_Apple21_tefg_1 Desired output: Apple01_xyz_1 Apple01_abc_c1 Apple21_trs_1 ...
0
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1answer
23 views

Switch two arbitrary length strings separated by a symbol

I'm trying to split a filename consisting of arbitrary number of space-separated words into two separate strings by searching for the first occurrence of a symbol '-', and then switch the order of ...
0
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2answers
112 views

how to subtract first value from the last one within a column across a row in shell?

I have a data file looks like : 1 1 1 1 1 1 1 1 2 2 2 2 3 3 3 3 3 3 2 4 5 8 9 10 13 17 19 29 30 32 33 50 700 800 900 950 first I want to insert space among each 3 identical values keeping each ...
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2answers
64 views

Add columns to a text file with set spacing in Bash

I am setting up a malware zone file in DNS which will point all hosts to a specific IP. The file is simply a list of hostnames. This is what I have now: googlle.in ...
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0answers
173 views

How to redirect linux command outputs to specific row and column in csv?

I'm working on Unix Build post documentation process, I have a CSV file to be filled in and uploaded for every new build, to ensure the servers are build as per the original request. The CSV file ...
10
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8answers
12k views

Can sed remove 'double' newline characters?

I have a document with a lot of empty lines. How can I remove them when there are 2 or more together. I tried sed "s/\n\n//" file but it didn't work. No error.
1
vote
3answers
43 views

Transpose paramter values from a file and Generate parameter files from it

There's a file containing a table with the parameter names as the first line, values in the following lines: How to perform the following using awk, sed or any shell scripting utility: generate a ...
0
votes
1answer
48 views

How do I remove “^M” from a file? [duplicate]

I have two "identical" files that I compare in diff, and it shows that every line is different, after looking at the file I found that one of them has ^M at the end of every line. How do I remove ...
0
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2answers
24 views

sed + search word with strings and replaced all word

I want to create with sed the following: For example each word in the file that have the ssss... Should be replaced (all word) with target string as gggg. echo "duwdbnhb ssssssmnfkejfnei" | sed ...
0
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1answer
24 views

Insert Line in File When Group of Lines Changes

Let's say I have a text file like this: group1 hello group1 there group1 nice line group2 here group2 we group2 go What I want to do is insert a line when the group of lines changes, something ...