Questions tagged [regex]
Also known as regular expression or regexp, a description of a set of strings, often used for searching and validating strings.
1,613
questions
0
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1answer
4 views
vim syntax file, how to mark everything after the word END as a comment?
i am writing a vim syntax file and would like to highlight everything after (but not including) the word END until the end of the file as a comment. thank you for any help!
0
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0answers
18 views
Sed: Perform pattern search in reverse order in a certain range and get the line number on each match
I want to search the pattern in a certain range but in reverse order. For example if I give the range say 200,250 then I want that search should be performed in reverse order means search should start ...
0
votes
1answer
25 views
How to exit `sed` after the first match?
I need to search a pattern I/f in a file between some range of lines and quit on the first match. For that I am using sed command like this
sed -n '14922,28875{\|I/f|=}' file.txt
It actually prints ...
1
vote
1answer
19 views
Regex: Find those html pages which does not contain this particular word on a link
I have these 2 lines on more than 3000 HTML pages:
<link rel="canonical" href="https://mywebsite.com/hi/about.html" />
and
<link rel="canonical" href="https://mywebsite.com/about.html" /&...
1
vote
2answers
27 views
MS Word terminate wildcard in advanced search
Is there a way to termiante the wilcard in the search, when I want to search for example for two words?
Let's say I have the following words
awesome mouse
awful albatros
awesome albatros
awful mouse
...
0
votes
1answer
35 views
How can i invert my Regex matching results?
I have checked a lot of information about how can i invert my match..but unfortunatelly i coundnt be able to do it in for my problem. So..lets say i have this text :
GS Sos_519 ...
1
vote
1answer
180 views
Understanding and using \& in vim search-and-replace
I have come across the following specifier for a vim pattern on http://vimregex.com/:
\& -- the next line where the previously used substitute pattern matches
And not quite sure what an ...
1
vote
1answer
43 views
Display dirs tree based on a file content
$ find ./ | tac
./dir1/file -> "abc"
./dir1
./dir2/file - > "abc"
./dir2
./dir3/file -> "xyz"
./dir3/dir3_1/file - > "abc"
./dir3/dir3_1
./dir3
or
$ tree
├── dir1
│ └── file -> "...
1
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0answers
20 views
Bash Tab expansion to list all executables based on regex
How can I use regex based methods to find commands available in the ${PATH}?
For example when I press w and Tab switch. I get a list of all commands starting with w. I would like to list all ...
0
votes
2answers
85 views
Pattern matching in bash to use in case-statements (instead of regex)
I have coded one of my first bash scripts. My goal is to make my office "paper-free". I have a lot of scanned documents, that I want to save with the date (usually found at the top of each document) ...
2
votes
1answer
37 views
regex - replace ordered list of lines matching a string with another list
I have such confused ideas I couldn't describe well the problem synthetically, hence the title is horrible. Suggest me a better one too, while you're at it.
Basically, I have two SubRip (.srt) ...
0
votes
1answer
20 views
Trying to use Sed with regex to fetch data from a log file
Hello I am experience difficulty to extract data from log file with sed -E command.I see regex is different than this I use in python.
INFO [2020-05-10 17:37:34] [armada.gloge] Username [109/15654]
...
0
votes
1answer
35 views
Word: How to find all years (19xx or 20xx) ending with a closing parenthesis “)”
I'm helping someone do a two-way citation check in an academic paper.
What I would like to do is use the Find function to find all instances of citations; all citations should have this format
(...
1
vote
1answer
30 views
Notepad++ - Find list of acronyms in text file
I want to make list of acronyms in a text file.
I tried some regex to find the list of words with all capital letters.
Ex. [A-Z]+
This did not work.
I also have another problem. Some acronyms do ...
-1
votes
1answer
49 views
Is Regex Coach broken when it comes to m/ multi-line?
Is Regex Coach broken when it comes to "treat string as multiple line" ?
(There is another option and "treat string as single line" for 's', I think that's badly named and probably means "dot ...
0
votes
1answer
42 views
Notepad++ How to delete sections of text starting with a line containing a certain phrase
I'm trying to edit a few calibre files that have tags attached, but the tag line is not always formatted the same.
Eg.
div class="pcalibre1 pcalibre2 pcalibre tags-list"
div class="pcalibre1 ...
0
votes
0answers
15 views
Rsync include certain files and directories but do not send directories that end up empty because of the include
This seems to be a bit of a specific question as I have found many that resemble it but are slightly different.
The idea is to include certain directories from within a node_modules directory but not ...
-1
votes
0answers
6 views
php I need every line uniq by generate_string and preg_replace [migrated]
I want to replace every line by php code using preg_replace but its not giving me uniq every line. I need every line uniq
<?php
$permitted_chars = '...
0
votes
2answers
53 views
Replace each character of a word with line break
I want to have a line break between each character/letter of the word
if the word is
< Hello >
I want it as
H
e
l
l
o
0
votes
0answers
16 views
Sublime Text 3 - Regex Replace Using Conditional Match
In Notepad++, it is possible to use this kind of expression in the "Replace" box:
(?{1}{$1}\n:)
This means if first group matches, replace by first group followed by new line, else replace by empty ...
0
votes
1answer
34 views
regex - is there anyway to simplify this regex (OR)?
the basic regex is
[^ ]*KEYWORD[^ ]*
Keyword = freetext,
I have many many keywords, so I use OR >>> "|", and repeat the regex many times in 1 line, for example:
[^ ]*210[^ ]*|[^ ]*211[^ ]*|[^ ]*...
0
votes
1answer
43 views
Regex - how to delete word that contains specific keyword
I have description in many rows, for example
You can see them at www.superuser.com/question/ask, but for the second opinion, you should check bowwwbowww too
How to delete every word that contains ...
0
votes
1answer
27 views
regex to not match part of string
I am searching for time in multiple formats like:
1:00 pm
1 pm
10:38 am
8am
9p.m.
etc...
I came up with below regex:
([0-9][0-9]?)(\\:([0-9][0-9])(\\:([0-9][0-9]))?)? ?([ap]\\.?m\\.?)
For example, ...
0
votes
2answers
67 views
Finding the first occurance of space to replace with a “ - ”
I am completely new to regex and I would greatly appreciate any help.
I am trying to bulk rename files.
File names are:
001 This is the first file.txt
002 This is the second file.txt
003 This is ...
1
vote
1answer
26 views
notepad++ regex duplicate xml text on each line
I need to process a xml file, in which a certain text has to be inserted (duplicated) - see the following, for an example:
<Item Property1="..." ... PropertyN="someText"></Item>
How I ...
0
votes
2answers
78 views
Find the every nth occurrence of a string
Despite the many similar questions, I am still confused.
qx|o1|md|4SAK9H7DQ876CAJ943,SJT8642H2DKT2CQ76,SQ5HKT653DAJCKT52|rh||ah|Board 1|sv|0|pg||
qx|o2|md|4SKQJ7642H9DQJ8CK8,STHAK8762D74CQJ65,...
1
vote
1answer
45 views
Moving the first x characters of a filename to the end
I have a bunch of files or arbitrary length. I need to move the first 10 characters of the filename to the end to the end of the filename just before the extension.
If I have to use the rename ...
0
votes
3answers
62 views
transform numbers in href tel tag
I have a directory with hundreds of phone numbers with the form "xx.xx.xx.xx.xx". where "x" are numbers from 0 to 9. Groups of 2 numbers are separated by a dot. I'm looking for a regex that would ...
1
vote
1answer
23 views
Read a file and replace dot with colon using sed command
Im trying to read and substitute period(.) with colon (:) from the below input file using sed regex expression.
Can one please check and suggest me.
Input File has 12.23.45
Expected is 12:34:78
...
2
votes
1answer
26 views
Keep only the second and third words of each line in notepad++
I want to...
keep the second...
and third words only...
I would like to keep only the second and third words and delete everything else in each line i.e want and to, the and second, third and words ...
1
vote
0answers
15 views
Unable to match start-of-line using egrep
I've the following command that works good on my macOS;
git branch | egrep -v --regex "$REGEX_PATTERN" | xargs git branch -D
where the REGEX_PATTERN=(develop|master|release|).
When I change my ...
0
votes
1answer
24 views
Why isn't grep agreeing with other regex tools?
I am currently trying to write a grep command to find IP addresses in its input. My regex is
\d+\.\d+\.\d+\.\d+
which works as expected in an online tester with all flavors of regex.
Yet, when I ...
0
votes
1answer
57 views
Dealing with colon separated values when values themselves contain colons
I have got data in the following form :
username:hash:email:ip
but there are no delimiters for the values themselves.
My problem is that when importing the data into Excel when a username contain a ...
0
votes
3answers
52 views
How to remove brackets
I have a RegEx to extract values in brackets [] from a string that actually is configured like this:
[^\[]*(\[.*?\])[^\[]*
$1;
The upper regex give me the following output which is mostly what I ...
1
vote
2answers
43 views
How to replace “35yrs” with “35 yrs” using regular expressions?
I have a list that looks like this:
35yrs
74 yrs
40yrs
24yrs
36 yrs
I want to use regular expressions (in Textmate) to make the list look like this:
35 yrs
74 yrs
40 yrs
24 yrs
36 yrs
I have the ...
0
votes
2answers
18 views
How to delete text not matching regex in phpStorm
Having a JSON logfile, I want to extract the product IDs to have a clean list:
{"comment": "comment.", "product":"100"}
{"comment": "comment.", "product":"555"}
{"comment": "comment.", "product":"100"...
2
votes
0answers
35 views
logcheck ignores one of my ignore patterns
I use logcheck for more than a decade and never had an issue. Now some messages are ignored and I just can't wrap my head around why.
My ignore.d.server/_self contains:
^\w{3} [ :0-9]{11} [._[:alnum:...
0
votes
1answer
37 views
Prepending Text To Every Line Within Capture Group
What I have:
X
(
1
2
3
)
BREAK
Y
(
4
5
)
BREAK
Z
(
6
7
8
9
)
BREAK
What I'd like:
X,1
X,2
X,3
Y,4
Y,5
Z,6
Z,7
Z,8
Z,9
I'd prefer to figure out how to do this using RegEx in Notepad++.
As I ...
0
votes
0answers
34 views
VBA in Microsoft Word - change color of the text matching regex
I am writing a VBA script that applies the 'code comment' formatting to text in Word document.
I created a custom style called "Code Snippet" with formatting similar to one in Visual Studio.
The idea ...
0
votes
2answers
55 views
How to generate a Password Dictionary by Regex?
I forgot the password I used to encrypt a file, but I know the pattern of the word I used as password. I try to bruteforce the file, but it will take thousands of years to be decrypted, so the easy ...
-1
votes
2answers
30 views
How to append a group of lines after another group of lines? [closed]
How to transform this text from:
Chapter 1. Horse
Chapter 2. Orange
Chapter 3. Computer
/1
/2
/3
to
Chapter 1. Horse/1
Chapter 2. Orange/2
Chapter 3. Computer/3
I'm not sure if regex is useful ...
6
votes
2answers
2k views
Regular expression ignoring 9 occurrences of a special character '|'
Need regular expression to parse a log line, I have to select data after 10th occurrences of pipe symbol |
Sample log line;
Info device Allow:FWD|TCP|data1|data2|data3|data4|data5|data6|data7|...
0
votes
1answer
42 views
ASK How to extract email regex using Emeditor? get email specific
example :
hello this my email user1@domains.com contact me
yes this my email user2@needthis.ca:contactmenow
user:3:user3@needthistoo.com.au:contactme
hello this is my email andre,user4@needthis.co.uk,
...
1
vote
2answers
69 views
how to extract a specific part of a string from character 7 to 17 and save it in new txt file (findstr, gnu32-sed or other tool)
How do I extract a specific part of a string from character 7 - 17 using regex via the command line?
My string is ThisString and in the file data I have a lot of strings, but I need only ThisString ...
0
votes
1answer
57 views
How to substitute every opening curly brace that changes bracket balance from 0 to 1 with sed/awk?
Example input:
void C::foo()
{ // <- this changes bracket balance from 0 to 1
if (true)
{ // balance is 2 after we process this bracket
...
} // now it is 1 again
} // now ...
1
vote
1answer
34 views
notepad++ Inverse Regex replace (all but string)
I want to delete all lines that do not contain specific words
Example:
.123
.keep1
.dsa
.keep2
.asd
Result:
.keep1
.keep2
I use this regex (?!^.*SOMETEXT.*$)^.+\r?\n (And replace with nothing), ...
-1
votes
1answer
15 views
Allow only two instances of a character using RegEx
I am new to using regular expressions and I am trying to figure out something that would seem to be pretty easy. I would like to identify if a character exists only twice within a string. The ...
0
votes
1answer
46 views
How to edit a multiline pattern in bash (sed and awk are available)
So here is my very specific task. I have patterns of type
.*[class|namespace|struct].*
(this is one part of the pattern, to be precise),
then an arbitrary amount of newlines \n or spaces ...
0
votes
0answers
24 views
Simple Batch CScript Hybrid
I'm interested in using RegExp for Batch. I put this script together:
@if (@X)==(@Y) @end /*
@goto :Batch
setlocal disableDelayedExpansion
set "infile="
set "test=%~1"
if defined test (
setlocal ...
2
votes
1answer
110 views
Using grep to filter folders with numbers
I was trying to list only folders with numbers filtering an ls -1 (option -1 is list one file per line) through grep (I know find can do it too, but the sake of this example I want to stick to grep)
...
