Using Visual Studio Code

In Visual Studio Code, to delete the entire line make your regex something like:


In the above regular expression,

  • ^ – Matches the beginning of line
  • .Matches any character (except newline character)
  • * – Match 0 or more repetitions of the preceding character, as many repetitions as are possible. For example ab* will match ‘a’, ‘ab’, or ‘a’ followed by any number of ‘b’s.
  • (…) – Matches whatever regular expression is inside the parentheses, and indicates the start and end of a group.
  • | – A|B, where A and B can be arbitrary REs, creates a regular expression that will match either A or B.
  • ? – Causes the resulting regular expression to match 0 or 1 repetitions of the preceding regular expression. ab? will match either ‘a’ or ‘ab’.
  • \n – Linefeed character. On windows, use \r?\n instead of \n.

If you want to delete the entire line having word word1 and word2, follow below steps

  • Press CTRL + F to open Find, and select the regular expression mode as shown below.
  • Paste above string.
  • Click on the right most bottom icon.
Find Dialogue in Visual Studio Code to remove lines containing string.
Find Dialogue in Visual Studio Code

Using Notepad++

To replace the line, follow below steps

  • Press CTRL + H to bring up the find replace dialog.
  • In the Find what: text box include your regex: .*help.*\r?\n (where the \r is optional in case the file doesn’t have Windows line endings).
  • Leave the Replace with: text box empty as shown in below figure.
  • Make sure the Regular expression radio button in the Search Mode area is selected.
  • Then click Replace All. All lines containing your search term help have been removed.
Find-Replace dialogue in Notepad++ remove lines containing string.
Find-Replace dialogue in Notepad++