Sponsored Content
Top Forums Shell Programming and Scripting Automating find and replace REGEX expressions in a script Post 303045344 by bedtime on Tuesday 17th of March 2020 12:33:43 PM
Old 03-17-2020
Automating find and replace REGEX expressions in a script

I've made several REGEX expressions which I would like to use to find and replace text in a .srt file:

For example, below, the first is the pattern to be found. The second is the replacement. These work with my text editor just fine:
Code:
\n\n(?=\d{1,}\n)
~~~

(?<=-->\s\d{2}\:\d{2}\:\d{2}\,\d{3})\n
```

 (?<=\d)\n(?=\d{2}\:\d{2}\:\d{2}\,\d{3} -->)
'''

There are several more that I have, so I'd like to be able to throw them into a script which would read and replace each successively and for every instance in a given file.


Any idea of a program that could do this? I've had a look at SED, but it seems that using it might require a lot of extra work in editing the expressions.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

automating file search and replace text

Hi, I am trying something like this: Let's say I have a file called File1 with contents: x=-0.3 y=2.1 z=9.0 I have another file, File2, with contents: xx= yy= zz= (nothing after "="). What I want to do is get the value of x in File1 and set it to xx in File2, i.e., xx=-0.3. And the... (3 Replies)
Discussion started by: ommatidia
3 Replies

2. Shell Programming and Scripting

A simple find and replace without using any regex (bash)

Hi, I need to do an exact find and replace (I don't want to use regular expressions because the input comes from user). I want to find a line that matches the user's input text and replace it with an empty string. For example, let's say the user enters I love "Unix" and the contents of the... (2 Replies)
Discussion started by: srikanths
2 Replies

3. Shell Programming and Scripting

Search Replace with regular expressions

Hello I have this regular expression: </book>(?:\n)<collection>(.*)</collectioninfo> And I have this peace of text on a FILE <book bookid="3" title="the title 3" remaining = "50" price="100"> <reader readerid="1"><!]></reader> <reader readerid="2"><!]></reader> <reader... (1 Reply)
Discussion started by: dirdamalah
1 Replies

4. UNIX for Dummies Questions & Answers

Regular Expressions -- Find spaces outside

Hello, I need help with using grep and regular expressions.... I have a long list of about 1000 lines of Chinese flashcards. Here's a small excerpt: 意文 yìwén (given name) 貴姓 guìxìng (honorable surname) 貴 guì (honorable) 姓 xìng (one's surname is; to be surnamed; surname) 呢 ne (interrogative... (2 Replies)
Discussion started by: arduino411
2 Replies

5. Linux

A find and replace script

Hello everyone, I am trying to do a simple script (shell or perl) for a bioinformatic problem, where I want to use a list from file2 and append this information to file1 (output). Example: File1 >Apple1 GAGACGATTTATATATAGAAGAGAG >Banana2 CAGAGAGAGAGACCCCCCCCCCCC File2 >Apple1 ... (2 Replies)
Discussion started by: herasj01
2 Replies

6. Shell Programming and Scripting

FIND w/ multiple expressions

For reference i am still a newb at scripting, but i have what i think is a complex issue. I need to run a FIND on / to identify all files and print them to >> $TEMPFILE I need to avoid MVFS I need to avoid /var/tmp/nastmp/ I was trying find / \( -type d -name nastmp -prune \) -a \( -fstype... (4 Replies)
Discussion started by: nitrobass24
4 Replies

7. Shell Programming and Scripting

Find 2 expressions then print in a single line

Guys, need help. I have a file that contains something like this: abc def ghi jkl I want to print the first and last line of the file and the output should be in a single line. so, output should be like this: abc jkl (3 Replies)
Discussion started by: solidhelix08
3 Replies

8. UNIX for Advanced & Expert Users

Using find and regular expressions

Hi Could you please advise how can one extract from the output of find . -name "*.c" -print only filenames in the current direcotry and not in its subdirectories? I tried using (on Linux x86_64) find . -name "*.c" -prune but it is not giving correct output. Whereas I am getting... (9 Replies)
Discussion started by: tinku981
9 Replies

9. Shell Programming and Scripting

Find and Replace in Shell script

Friends, I have more than 1000 lines in text file which needs to be converted as UPPERCASE by adding _ com.sun.url=www.sun.com com.ssl.port=808 com.ui.path=/apps/ssi Expected output com.sun.url=_COM.SUN.URL_ com.ssl.port=_COM.SSL.PORT_ com.ui.path=_COM.UI.PATH_ Thanks in... (4 Replies)
Discussion started by: baluchen
4 Replies

10. Shell Programming and Scripting

sed find multiple expressions plus next next line

Hello I am trying to write sed code where it will look through the text for lines with specific expression "Started by user" and when found, will also add the following line, and also lines with another expression "Finished:" sed -n '/Started by user/, +1p, /Finished:/'... (4 Replies)
Discussion started by: dlesny
4 Replies
GIT-REPLACE(1)							    Git Manual							    GIT-REPLACE(1)

NAME
git-replace - Create, list, delete refs to replace objects SYNOPSIS
git replace [-f] <object> <replacement> git replace -d <object>... git replace -l [<pattern>] DESCRIPTION
Adds a replace reference in .git/refs/replace/ The name of the replace reference is the SHA1 of the object that is replaced. The content of the replace reference is the SHA1 of the replacement object. Unless -f is given, the replace reference must not yet exist in .git/refs/replace/ directory. Replacement references will be used by default by all git commands except those doing reachability traversal (prune, pack transfer and fsck). It is possible to disable use of replacement references for any command using the --no-replace-objects option just after git. For example if commit foo has been replaced by commit bar: $ git --no-replace-objects cat-file commit foo shows information about commit foo, while: $ git cat-file commit foo shows information about commit bar. The GIT_NO_REPLACE_OBJECTS environment variable can be set to achieve the same effect as the --no-replace-objects option. OPTIONS
-f If an existing replace ref for the same object exists, it will be overwritten (instead of failing). -d Delete existing replace refs for the given objects. -l <pattern> List replace refs for objects that match the given pattern (or all if no pattern is given). Typing "git replace" without arguments, also lists all replace refs. BUGS
Comparing blobs or trees that have been replaced with those that replace them will not work properly. And using git reset --hard to go back to a replaced commit will move the branch to the replacement commit instead of the replaced commit. There may be other problems when using git rev-list related to pending objects. And of course things may break if an object of one type is replaced by an object of another type (for example a blob replaced by a commit). SEE ALSO
git-tag(1) git-branch(1) git(1) GIT
Part of the git(1) suite Git 1.7.10.4 11/24/2012 GIT-REPLACE(1)
All times are GMT -4. The time now is 08:11 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy