All Questions
9 questions
0votes
1answer
157views
How to replace text in file - conditions and arithmetic required
I need a script to change content in some text files. This a bit beyond my limited bash skills. Maybe perl or python would be a better approach, I have no experience with either of these. I have a ...
7votes
2answers
7kviews
Is there a way to replace last occurrence of match using a shell variable substitution?
% x=abracadabra % echo ${x//a/o} obrocodobro Hmph... Is there a way to replace the last occurrence of a pattern using shell substitions (IOW, without rolling out sed, awk, perl, etc.)?
- 16.2k
0votes
1answer
465views
Replace a value in URL
I'm new to Linux world and need some help. I have two files : A token.txt file with a string something like this: xd2111Vf124FfmrfJ22fag And a playlist.m3u file with the following: EXTM3U EXTINF:-1,...
- 55
-2votes
1answer
72views
Replacing rows from one file with rows from other file [closed]
I am thinking how can I replace a portion of a file -- let's say lines from m to n with lines from other file and do this in an nice manner. I however don't want to ...
2votes
1answer
66views
Replace parts of files
I'm quite new in the linux world. I've got a file containing Usernames and Passwords, for browser authentications. eg.: user:ioeuwz5rf (Password generated with "openssl passwd ABCXYZ") Now, I want ...
- 27
-1votes
1answer
1kviews
How do i create a sed script to prompt the user to replace a number in a file? [duplicate]
I'm new in Unix, and I'm learning about sed command. I need to write a very small script for searching a number in a file and replacing it. I tried doing grep, and than deleting the specific phone ...
0votes
2answers
137views
If filename has more than n characters, delete the last ones
I'm kinda new with the unix shell, and I don't seem to find the answer of my problem : I have a folder containing multiple files : a correct filename contains exactly 13 characters (numbers + letters ...
- 1
0votes
1answer
345views
How can I replace a filename with .ear in a file-list using sed?
I have a file whose contents look like: /appl/as/var/spool/ears/mps/ear1.ear ... I want to replace the name of only ear1.ear with ear2.ear and I am using the below sed command, but with no luck: ...
-3votes
1answer
6kviews
How can i replace a specific string within a line inside a text file [duplicate]
$ cat text.txt my name is Steven my age is 10 i like dogs What command will be fitting so that echo "Kate" will replace Steven on text.txt?
