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Questions tagged [regex]

When asking regex questions, always add the tag for the specific programming language or tool (e.g., Perl, Python, or Java; vi, emacs, or ɢɴᴜ grep; etc.) you are using.

720 questions
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REQENV and SETIF If statement isn't evaluating correctly

....or it is and I've missed something. So I have a website that can only be accessed via certain IPs. A new development is that I want some of the pages on the site to be open and freely available to everyone regardless of IP - lets say…
Richard Askew
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Nginx split the URI into variables to use on proxy_pass

I'm tring to get the URI parts to then pass it to the proxy_pass url. But I don't know about regex to do this. I need to get the first and last URI into a variables to pass it on the proxy_pass like this: https://example.com/user/port to proxy_pass…
user1505698
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RegEx passed by CSV file not working in PowerShell

Hi I have a script trying to pull out the price value from a html file. the Regex works when I assign it in the script but when I put the regex in CSV, it refuses to give me the result. Could someone help with this? $htmlcontent = Get-Content…
Cliff
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Fail2ban regex not banning IP address

I have the following jail added to jail.local file: [nginx-honeypot] enabled = true filter = nginx-honeypot port = http,https logpath = /var/log/nginx/access.log maxretry = 1 bantime = 86400 I created the filter nginx-honeypot.conf inside the…
adam78
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Bacula fileset wildcards: how include /folder/(arbitrary string)/uploads but exclude /folder/(arbitrary string)/whatever/uploads

I'm creating an exclude rule for bacula so it doesn't take care of some cache and temporary uploads folders inside a filesystem. But I'm failing to write it Suppose this…
Gonzalo Cao
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fail2ban regex failing to work

I am trying to create a regex for my fail2ban filter to block all IPs that get a incorrect login on a web application. The way I distinguish this is that each login generates a GET request in the access log with this thing "?&err=1". This is an…
ServerMan
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nginx url rewrite regex with special characters

How to write a regex that matches a path node with reserved characters like '+','-' ? for example: https://e.example.com/foo+/bar/file/test.txt need to be re-written as https://e.example.com/bar/file/test.txt I tried rewrite ^/foo+(/.*)$ break; but…
Pahan
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Need a regular expression to match 3-member simple series

I need a regex that would match the following example strings: Example 1: "red, blue, and hot" Example 2: "red, blue, or hot" Three individual words, the first two followed by commas, and the conjunction 'and' (case 1) alternatively 'or' (case…
Tomáš Bažant
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How to redirect all pages that contain a specific word using the .htaccess file

I have a bunch of indexed pages that start with the same word and they are all 404 so I want to redirect them all to the homepage of the site. The server is Apache, so I would like to use the .htaccess file. So I need to redirect pages (for…
Petar Cvetic
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Odd behavior of bash array

I've recently encountered a strange script behavior and still don't understand y the array behaves this way. Here is a piece of the script: for nCDATAReg in $(seq 1 4) do sTestBuffer1=$(grep -Pzoi '\/\/<\!\[CDATA\[[\s\S]*?\/\/\]\]>'…
Talcott Parsons
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Dynamically move mails into matching mailboxes with sieve fileinto regex

I'm trying to create a sieve script, which files mails into mailboxes (or sub-directories of the inbox) matching a certain subject identifier. For example if the subject includes 123 (three digits, 0-9), the server should check if a mailbox matching…
Breakfast Serial
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How to modify fail2ban filter for openvpn to fit the DD-WRT logs in /tmp/var/log/messages?

I just installed Entware, on a DD-WRT router running openvpn server. I am trying to install a proper openvpn /opt/etc/fail2ban/filter.d/openvpn.conf filter for fail2ban, but am having problems modifying the regex filter posted at:…
DanRan
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RegEx for 301 redirects to change path AND remove a string

I am looking for an RegEX redirect rule to redirect the image file locations to a new location, whilst also removing part of the original url which is the name of the image OLD…
Rebecca Hubbard
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Ansible Findall capture groups and list

I think I'm confused with Python and Ansible findall. Can I use capture groups in Ansible? For example, How can I capture group 1 and group 2 then reverse the position in the resulting list? For example, I'm pulling some block devices info of a VM…
Billy K
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Nginx reverse proxy base URI to change port

Hi i want reverse proxy my Nginx base port used for example http://example.com:443/ips/8443 -> http://example.com:8443/ips/8443 http://example.com:443/ips/23950 -> http://example.com:23950/ips/23950 If it supports this, it would be much better, but…
Mohsen
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