How do I delete multiple lines in Linux history?

How do you delete line history in Linux?

Removing history

If you want to delete a particular command, enter history -d <line number> . To clear the entire contents of the history file, execute history -c . The history file is stored in a file that you can modify, as well.

How do I remove the last 10 lines in Linux?

Remove the Last N Lines of a File in Linux

  1. awk.
  2. head.
  3. sed.
  4. tac.
  5. wc.

How do you delete multiple lines in Unix?

Deleting Multiple Lines

  1. Press the Esc key to go to normal mode.
  2. Place the cursor on the first line you want to delete.
  3. Type 5dd and hit Enter to delete the next five lines.

How do I delete multiple log files in Linux?

To delete multiple files at once, use the rm command followed by the file names separated by space. When using regular expansions, first list the files with the ls command so that you can see what files will be deleted before running the rm command.

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How do I delete all in terminal?

Use ctrl + k to clear it. All other methods would just shift the terminal screen and you can see previous outputs by scrolling. Use of ctrl + k will remove previous contents plus it will preserve your command history too which you can access by up down arrow keys.

How do I clear my command prompt history?

4] Clear command prompt history using Alt+F7

The simplest way is to restart the Command Prompt. The command history is cleared automatically every time you close it and start the command prompt again. To clear the command history, you can also use Alt+F7 keyboard shortcut.

How do I remove the first 10 lines in Unix?

Remove first N lines of a file in place in unix command line

  1. Both sed -i and gawk v4. 1 -i -inplace options are basically creating temp file behind the scenes. …
  2. tail is multiple times faster for this task, than sed or awk . ( of course doesn’t fit for this question for real inplace)

How do I remove the last 10 lines in Unix?

It’s a little roundabout, but I think it’s easy to follow.

  1. Count up the number of lines in the main file.
  2. Subtract the number of lines you want to remove from the count.
  3. Print out the number of lines you want to keep and store in a temp file.
  4. Replace the main file with the temp file.
  5. Remove the temp file.

How do I remove the last line in Unix?

So sed ‘$d’ file; sed ‘$d’ file will print out the contents of the file twice, minus the last line each time. The delete-the-last-two-lines equivalent of sed ‘$d’ file is sed ‘$d’ file | sed ‘$d’ . Yeah, that’s inelegant but of course it works.

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How do you delete a line in Linux terminal?

Just to summarise all the answers:

  1. Clean up the line: You can use Ctrl + U to clear up to the beginning.
  2. Clean up the line: Ctrl + E Ctrl + U to wipe the current line in the terminal.
  3. Clean up the line: Ctrl + A Ctrl + K to wipe the current line in the terminal.
  4. Cancel the current command/line: Ctrl + C .

How do I delete a whole line in terminal?

# Deleting whole words ALT+Del Delete the word before (to the left of) the cursor ALT+d / ESC+d Delete the word after (to the right of) the cursor CTRL+w Cut the word before the cursor to the clipboard # Deleting parts of the line CTRL+k Cut the line after the cursor to the clipboard CTRL+u Cut/delete the line before …

How do I delete all content in vi?

Immediately after opening a file, type “gg” to move the cursor to the first line of the file, assuming it is not already there. Then type dG to delete all the lines or text in it. If Vim is in another mode, for example, insert mode, you can access normal mode by pressing Esc or <C-[> .