need to replace a file contents – unix.stackexchange.com


I am stuck in a situation. I have a file script.txt with contents

$cat script.txt

SET TABLESPACE CONTAINERS FOR 3
-- IGNORE ROLLFORWARD CONTAINER OPERATIONS
USING (
FILE ...
How can I select all the records that have '2' as the second field?

My data is:

$ cat numbers.txt
1 2 3 4 5 6 7 8
2 4 6 8 10 12 14 16
3 6 9 12 15 18 21 24


My awk is:

awk '$2 - /^2$/ {print}' ...
Development
I have temp file with some lower-case and upper-case contents.

temp file contents

hi
Jigar
GANDHI
jiga


I want to convert all UPPER to LOWER

I tried the following command.

INPUT

sed -e ...
Development
I am looking for advice on how to search a part of a string within a
file and replace the complete line OR append that string to that file
if not found. I "played" with sed for a while now, but ...
Development
I'd like to remove all carriage returns followed by line feeds (CRLF),
such as
in a file. How can I do that? I can't use dos2unix because that
replaces CRLF with LF. And I can't use tr because ...
Development
In vim editor, I want to replace a newline character (
) with two new line characters (

) using vim command mode.

Input file content:

This is my first line.
This is second line.


Command that I ...
Development
I am stuck in a situation. I have a file script.txt with contents

$cat script.txt

SET TABLESPACE CONTAINERS FOR 3
-- IGNORE ROLLFORWARD CONTAINER OPERATIONS
USING (
FILE ...
Development

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