How can you use Linux shell bash to execute a sed command that replaces content in a file and saves the changes?

edit

You can use the following command in Linux shell bash to execute sed command that replaces content in a file and saves the changes:

sed -i 's/old-text/new-text/g' file.txt

In this command:

• -i flag is used to save the changes in the file.
• s is the substitution command in sed.
• old-text is the text that you want to replace.
• new-text is the replacement text.
• g flag tells sed to replace all occurrences of the old-text in the file.

Replace file.txt with the name of the file in which you want to make the changes. Make sure you have the permission to modify the file.