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10
votes
1answer
9k views

Replace using VIM, reuse part of the search pattern

I am working with VIm and trying to set up a search and replace command to do some replacements where I can re-use the regular expression that is part of my search string. A simple example would be a ...
5
votes
1answer
596 views

Conditional search and replace on a line in vim?

Let' say I want to comment and uncomment a line. I know I can :s!^!//! and then :s!^//!! Now what if I want this as an one-liner? Basically, if a line starts with // then remove it, else add ...
3
votes
2answers
3k views

use awk to replace parentheses?

How can I use awk to replace the parentheses in these 2 scenarios? Change empty parens to the word "None" 192.168.0.24,Up,() Remove parens to only host.domain.com is left ...
8
votes
3answers
6k views

Vim :s replace first N < g occurrences on a line

In vim, I sometimes have occasion to replace the first few occurrences of a match on a line, but not every one like g would. e.g.: a a a a a to b b b a a I know I could use ...
8
votes
1answer
617 views

Case-preserving search and replace in vim?

In vim, I know I can search with or without case sensitivity. But if I want to search for a string in either upper or lower case, and replace it with a replacement of the same case, is that possible ...
9
votes
11answers
12k views

How can I “cat” a file and remove commented lines?

I'd like to know if there is a way that I could cat file like php.ini and remove all lines starting with ; For example, if the file contained this: ; - Show all errors, except for notices ; ...
4
votes
2answers
3k views

Replacing identical NIC cards creates eth1 instead of using eth0 in Ubuntu

I changed out a NIC card that was the exact same make and model. The setup process for Ubuntu 11.04 was very seemless and easy so I figured it would be smart enough to setup up the replacement card. ...
2
votes
1answer
524 views

Replace complex string in several files

A hacker got into a web server and added this string (removed some characters for security purposes and added line breaks for readability) in all index.php files: <?php ...
-2
votes
1answer
339 views

Linux “rpl” command doesn't replace text [closed]

I'm using rpl program in linux to replace date( with pdate( in some files. But it says A Total of 0 matches replaced in 1 file searched. while grep output for date( is: ...
11
votes
3answers
12k views

Replace string with contents of a file using sed

I have two different files: File1 /home/user1/ /home/user2/bin /home/user1/a/b/c File2 <TEXT1> <TEXT2> I want to replace the <TEXT1> of File2 with the contents of File1 ...
3
votes
5answers
2k views

How to replace a list of placeholders in a text file?

I have a text (configuration) file, but the program that reads the file unfortunately doesn't allow using any kind of variables. So I'd like to use a preprocessor that replaces a set of placeholders ...
2
votes
4answers
1k views

Collapse repeating characters

Is there a more Bashist way than echo "$PWD//" | sed -e 's#//\+#/#g' to replace repeating slashes with a single one? Thanks Steven D, now there's a fully working function to find the longest common ...
5
votes
2answers
4k views

How does one find and replace text in all open files with kate?

How does one find and replace text in all open files with kate?