@ethelyn
To find and replace a regex pattern in Linux, you can use the sed
command. The syntax for using sed
with regex patterns is as follows:
1
|
sed 's/pattern/replacement/flags' input_file > output_file |
Here's a breakdown of the different components:
Here's an example command to replace a regex pattern using sed
:
1
|
sed 's/foo/bar/g' input.txt > output.txt |
This command will search for the pattern "foo"
in the input.txt
file and replace it with "bar"
, and then write the modified content to output.txt
. The g
flag is used to replace all occurrences of the pattern in the file.
Note that the sed
command is case-sensitive by default. If you want to perform a case-insensitive search and replace, you can add the i
flag:
1
|
sed 's/foo/bar/gi' input.txt > output.txt |
This command will perform a case-insensitive search for the pattern "foo"
and replace it with "bar"
.