How do I replace a word using grep? No, you cannot replace a word with grep : grep looks for lines matching the expression you give it and prints those out (or with -v prints out the lines not matching the expression).
How do you replace a specific word in Linux?
- Use Stream EDitor (sed) as follows:
- sed -i ‘s/old-text/new-text/g’ input.
- The s is the substitute command of sed for find and replace.
- It tells sed to find all occurrences of ‘old-text’ and replace with ‘new-text’ in a file named input.
What is replace command in Linux? replace looks for all occurrences of string from and replaces it with string to. You can specify one or more pairs of strings to search/replace in a single replace command. Use the — option to indicate where the string-replacement list ends and the file names begin.
What is grep and sed? The sed command is a stream editor that works on streams of characters. It’s a more powerful tool than grep as it offers more options for text processing purposes, including the substitute command, which sed is most commonly known for.