How do you grep after a word?

So you need to escape the opening [ for grep (for regular expressions) as well. That can be done with grep ‘\[myword]’ or grep ‘[[]myword]’ . ^ is another regular expression operator that means: match at the beginning of the line only. So grep ‘^\[myword]: ‘ matches on lines that start with [myword]: .

How do you end grep?

End it by closing your quote (i.e. typing another apostrophe). Or, if you’ve changed your mind and you don’t want to execute the command any more, ctrl c will get you out of the command and back into the shell.

How would you search for the string at the end of the line in a file?

Matching the lines that end with a string : The $ regular expression pattern specifies the end of a line. This can be used in grep to match the lines which end with the given string or pattern.

How do you grep before and after?

You can use option -A (after) and -B (before) in your grep command.

How do I stop grep after first match?

So, how can I tell grep to stop finding another matching lines after a matched line was found? You can use -m option, see the descriptions from manpage below: -m NUM, –max-count=NUM Stop reading a file after NUM matching lines.

How do you grep only part of a line?

4 Answers

  1. sed -n suppress default output of sed.
  2. s/…/…/g search and replace, g: everything/globally.
  3. Order Number : \(.
  4. \1 use group 1 as replacement.
  5. p print replacement if any match.

How do I grep a specific word in Linux?

The easiest of the two commands is to use grep’s -w option. This will find only lines that contain your target word as a complete word. Run the command “grep -w hub” against your target file and you will only see lines that contain the word “hub” as a complete word.

How do you grep 3 lines before and after?

For BSD or GNU grep you can use -B num to set how many lines before the match and -A num for the number of lines after the match. If you want the same number of lines before and after you can use -C num . This will show 3 lines before and 3 lines after.