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

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1answer
60 views

bash script to replace server short names in a file with fqdn

I have a rather large config file that has server short names in it like this: [host 1] host = server1 [host 2] host = server2 [host 3] host = server3 I need to replace all the server short names ...
-1
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1answer
57 views

Sed in httpd.conf only for only one <VirtualHost>

I have a httpd.conf file containing the following virtual hosts : <VirtualHost *:443> JkMount /soncn/* tomcat3 SSLProtocol -all +TLSv1 SSLCipherSuite RSA:!LOW:!EXP:!eNULL:!aNULL:!RC4 SSLEngine ...
0
votes
1answer
43 views

Deleting multiple lines of HTML comment using sed

This is what I came up with but it doesn't work with multiple lines: sed -i '/<!-- my comment -->.*<!-- \/my comment end -->/d' my_file
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vote
5answers
160 views

How to print nth line after match / empty lines

I'm trying to write a short script that finds empty lines and then prints the nth line after the empty lines. For foo1 foo2 foo3 bar1 bar2 bar3 spam1 spam2 spam3 eggs1 eggs2 eggs3 printing ...
0
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1answer
32 views

replace inside a file with some specific structure

I have a file look like: login1.stampede(73)$ cat mc_input 800 ! n_pass 300 ! n_equil_pass 6 6 6 ! simulation cell dimension in x, y, and z 700 ! Tinit 100 ! Tmin 700 ! Tmax -10 ! Tinc Li ...
0
votes
1answer
32 views

How to catch everything after prefix phrase with SED?

How to catch everything after prefix phrase with sed? Like here I wished to catch active/idle: $ sudo hdparm -C /dev/sda /dev/sda: drive state is: active/idle $ sudo hdparm -C /dev/sda | sed ...
2
votes
1answer
53 views

find and replace a string in a file without using temp file with SED

I have a text file called sample.text which looks like this Continent Lat/Lon: 46.07305 / -100.546 Country Lat/Lon: 38 / -98 City Lat/Lon:(37.3845) / (-122.0881) I want to process this text to get ...
2
votes
1answer
32 views

using Sed to find and replace a string inside a file [closed]

I have been trying to replace '{{date}}' with a current date stamp in OSX command line. I have been using the following: sed -i -e 's/{{date}}/`date`/g' mhp.xml Does anyone know why it ends up ...
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0answers
30 views

How to add time stamp(month_year) to the file after matching specific string?

I want to add time stamp inside the file only after matching specific string, time stamp format: 03_2016 file contains "$channel_name Policy" string, I want to replace this string with ...
1
vote
1answer
24 views

How to replace a word in a file by a word get by read function? [duplicate]

Situation: echo "tell me a word" read the_word How to replace all WordToReplace in a file by the_word? sed does not seems to appreciate: sed -i 's/WordToReplace/$the_word/g' thefile.sh
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vote
1answer
34 views

Remove lines that contain file path using sed

I have a list of lines in a file that look like this: 6642a51e0ed5e6f89e5e4090b9aa0fb3 /home/device/eth0/uid d66d1417251a9a151176c34acf046878 /home/device/eth0/uid64 ...
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votes
2answers
49 views

Sed: Look for IP Address between range?

How does one look for a range in IP Addresses with sed? For example: sed '/85.159.56/s/$/ --- API SYSTEMS/' This would locate IP Addresses starting with: 85.159.56 and print next to it: --- API ...
0
votes
1answer
44 views

Removing new line characters around patterns

I have a fasta file of millions of paired sequences, that looks like this: >7001289F:56:HKH3FBCXX:2:1101:1692:2074 1:N:0:CGATGT ...
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2answers
62 views

How to get only certain fields from a given file?

I have list of employees in following format Name: Phone No: Email: Name: Address: Phone No: Email: Name: Country: Address: Phone No: Email: Name: Address: Name : Email: Address: All I want ...
3
votes
2answers
55 views

sed pattern and multiline substitution

I need to parse a text file and replace a certain portion of it. I believe sed is the way to do it but not sure how to handle multiple lines with it The pattern I am looking is set cells { \ cell1 ...
-1
votes
1answer
44 views

Understanding operators using sed

Trying to understand and break down this command. echo -e '1234\n4567' | sed 's/^\(..\)\(..\)$/\1:\2/' Being a novice with shell and sed I'm at a loss where to start in breaking down various ...
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vote
2answers
96 views

Find files containing a set of words

I'm using grep to find files within a directory, containing a set of words. But grep search lines containing these words, what I want is grep to show me the files or file containing all those words ...
1
vote
1answer
57 views

Extract random sample of N lines based on pattern

I have a file formatted like this: train/t/temple/east_asia/00000025.jpg 94 train/t/temple/east_asia/00000865.jpg 94 ... train/s/swamp/00000560.jpg 92 train/s/swamp/00000935.jpg 92 .... ...
2
votes
2answers
26 views

How to append a string to the first column of a matrix file?

I have a matrix file as follows. The first column is a name list. I want to add _i1 to the end of each name. A1A A1B A1C A1D A1E TR6764_c0_g2 0.00 0.02 0.00 0.00 0.00 ...
4
votes
4answers
110 views

Replace strings in a file based on a list of strings and a list of corresponding replacements

I am trying to replace strings in a file A: Hello Peter, how is your dad? where is mom? where the strings to be replaced are in file B: Peter dad mom and their corresponding replacements are in ...
0
votes
2answers
32 views

Error in yaml - possibly due to wrong escape, but unable to identify the issue

The line below causes an error (...request body malformed."}). It is part of a user-data.yml for use with cloud-init as part of the digital ocean api to bootstrap a server upon creation. sed -ie ...
0
votes
1answer
33 views

Remove tab, new line, carriage return until encountered char

I have a CSV file that has record separator of ,\n. One of the columns, has the possibility of containing tabs and new lines, which I wish to remove. How do I remove these chars (\t\n\r) using sed ...
2
votes
0answers
52 views

Awk /sed extract information when a pattern match from a paragraph

I want to search a pattern "FROM" in paragraph that begins with CREATE VIEW and ends with ";" and save the result in a csv file. for example if I have the following file : CREATE VIEW view1 AS ...
3
votes
1answer
40 views

Get contents of a file from first instance to last instance of some arbitrary string

How can I view in less from the first instance of some arbitrary string "foo" to the last instance? This arbitrary string will be on most every line of the log. I don't want to do grep "foo" bar.log ...
1
vote
1answer
37 views

Sed delete line if nth character is not specific character

I have a csv file, and I want to delete lines if their 12th character is not ;. So, for example, my file looks like this: 2266308;A;B;dfsgsfdg 2266309;A;BJHSADFK;gfsdg 2266310;A;B;dfg and I ...
0
votes
3answers
39 views

remove sequential lines that begins with the same pattern using awk or sed

I want to remove the sequential lines that begins with the same pattern "CREATE CURRENT" using sed or awk for example if have the folowwing file: CREATE CURRENT = 'aaaa' ; CREATE CURRENT = 'bbbb' ; ...
0
votes
2answers
50 views

insert complex line before or after complex line

i have file with complex text print("ERROR: passwords don't match") password = hash_func(password.encode("UTF-8")).hexdigest() i need to insert this text between them with ...
1
vote
3answers
43 views

Count occurance of number and delete line of matches value

Could I get some help please with my problem? I have a file that looks like this (comma separated): A,250,13,820,0,80,201 B,0,0,0,0,3,0 C,0,2,1,0,0,0 D,0,1,105,0,0,10 I would like to ...
0
votes
2answers
49 views

using sed to modify all files in a directory and name the outputs accordingly

I want the sed command to work on all files in a directory and output the result into a new file. If f is val1.txt, the name of the output file should be val1_ended.txt -this is what I am trying to do ...
0
votes
2answers
35 views

sed to change dns log string format

I want to use sed to change the following text: (3)www(5)first(3)nth(6)domain(3)com(0) to: www.first.nth.domain.com Can each group between the parenthesis separators be captured and then ...
1
vote
3answers
73 views

How to do following formatting using sed or awk or bash script on linux

Suppose, I have two files: file1 having below contents. message_aaa.wav test 1 of 1 test Label : aaa test Sentence : test aaa test String: test message Interpretation ...
1
vote
2answers
37 views

Sed from line 6 on from all txt files and being able to output all the results in a single file

I need to sed from all *.txt files from line 6 until the end All the results should be in a new single file with the name of each file preceding the results Example: Having different txt files the ...
0
votes
2answers
47 views

using awk to unzip files in directory

I have some zip files in directory when I need to unzip each in specific dir I used ls | awk '{ print "unzip " $1 " -d " $1} ' unzip p21286665_121020_Linux-x86-64.zip -d ...
4
votes
3answers
116 views

String replacement using a dictionary

What is a good way to do string replacements in a file using a dictionary with a lot of substituend-substituent pairs? And by a lot, I actually mean about 20 – not much, but many enough so that I want ...
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votes
1answer
28 views

Remove pattern from a line in file with Grep/sed/awk combo, pattern is another column

I have two columns (or could separate as two files) in a huge file and i need to remove the duplicate city name in the state/area column. los angeles los angeles ca, usa, west new york ...
3
votes
3answers
41 views

Strings - Extract File Version Recursive

I have been using strings to extract and compare file versions between directories. I don't seem to be able to do this recursively. The method I have been using per file is: strings -e l ...
0
votes
3answers
62 views

How can I escape special characters in a sed “sub-command”?

I'm using xmllint --shell on a large XML file, and using the write command to write out an XML snippet to be used in testing. The snippet that gets written out needs a couple of lines from the ...
0
votes
2answers
31 views

shell scripts when exceeding 100 seconds to send an email

When executing show engine innodb status on mysql, there are lines like ---TRANSACTION 17610C9A, ACTIVE 504 sec starting index read. I need a script to monitor for when the number of seconds after ...
1
vote
3answers
73 views

Make multiple edits with a single call to sed

I'm trying to use sed to edit a config file. There are a few lines I'd like to change. I know that under Linux sed -i allows for in place edits but it requires you save to a backup file. However I ...
1
vote
1answer
54 views

Sed command usage without defining variables in shell script

I have two variables source_repo="fdl_ppe_01_04_repos_svc" target_repo="fdl_ppe_01_10_repos_svc" and I currently do a substitution within an XML file to replace all instances of $source_repo with ...
4
votes
2answers
318 views

How do I print the (numerical) ASCII values of each character in a file?

How can I print the numerical ASCII values of each character in a text file. Like cat, but showing the ASCII values only... (hex or decimal is fine). Example output for a file containing the word ...
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votes
2answers
33 views

Using sed to pad-right a number in a CSV

I have thousands of lines that look like this: e0f186cf-c34d-42e9-b8a9-9b9cf1f304e7,TotalNumberOfHandledConnectionsOrSessions,TotalNumbe1211008586,1457343000,179.00 The column before last is a ...
3
votes
5answers
75 views

How to extract data from a file and construct a filename from one of the values

I'm trying to pull two values from a configuration file and write them to a new file. The hard part is that I want the name of the new file to be determined by one of the values in the input file. ...
0
votes
1answer
32 views

find lines that don't end with 'rpms' with sed

I would like to find lines that do not end with 'rpms' with sed in Linux. I have tried below: sed -ne '/?!(rpms$)/p' But unfortunately, it is not correct.
3
votes
6answers
170 views

Add quotes and new delimiter around space delimited words

I have the following string y10_zcis y10_nom y10_infl y20_zcis y20_infl y30_zcis I would like to transform this to "y10_zcis", "y10_nom", "y10_infl", "y20_zcis", "y20_infl", "y30_zcis" I ...
3
votes
1answer
89 views

Search file name within file

Someone put a lot of malicious code onto every single wordpress instance on my server. For the second time. (At least) Every js file has been modified. There is a pattern though, the code always looks ...
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votes
1answer
44 views

In a text file how can I sed multiple portions of text bordered by specific text patterns of text on Unix?

I use sed -n START_LINE,FINISH_LINEp filename > newfile to extract a specified range of text from a text file, e.g. sed -n 45,50p datafile > newfile. How can I use this to extract multiple ...
1
vote
3answers
72 views

How to add a different prefix to every line in a grep output?

I currently have this code: cat /proc/cpuinfo | grep "MHz" | cut -d ':' -f2 | sed 's/.*/Core NUM&Mhz/' Which outputs the following (for 8 cores): Core NUM 1941.054Mhz Core NUM 1949.820Mhz Core ...
1
vote
2answers
54 views

Use sed to replace a text and output to a new line and also print it

I need to change replace a text in a file and output the whole text file with the changed text and also print it to the screen. This is what I got: sed 's/123/456/g' number > number123 This ...
1
vote
3answers
44 views

replace a string 6 line after matching string

I want to change notification_interval from 15 to 2 for block File_Check only. I tried changing line 6th after matching File_Check line with: sed -e '6 /File_Check/ s/15/2/g' file.txt but it did ...