How do you delete contents of a file in Unix using vi?

How do I delete all contents of a file 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-[> .

How do you delete the contents of a file in Unix?

5 Ways to Empty or Delete a Large File Content in Linux

  1. Empty File Content by Redirecting to Null. …
  2. Empty File Using ‘true’ Command Redirection. …
  3. Empty File Using cat/cp/dd utilities with /dev/null. …
  4. Empty File Using echo Command. …
  5. Empty File Using truncate Command.

How do I delete text in vi?

To delete a word, position the cursor at the beginning of the word and type dw . The word and the space it occupied are removed. To delete part of a word, position the cursor on the word to the right of the part to be saved. Type dw to delete the rest of the word.

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How do you select and delete in vi?

Type Shift-v to enter linewise selection mode, then move the cursor down using j (yes, use h , j , k and l to move left, down, up, right respectively, that’s much more efficient than using the arrows) and type d to delete the selection.

How do I copy and paste in vi?

you can press key V to select whole lines. Press d to cut or y to copy. Move the cursor to the place where you want to paste. Press p to paste contents after the cursor or P to paste before the cursor.

How do you select all lines in vi?

How To “Select All” In Vim/Vi?

  1. Use ggVG To Select All. All content of a file can be selected by using the Visual Mode of Vim or Vi. …
  2. Use 99999yy To Select and Copy All. …
  3. Use $yy To Select and Copy All. …
  4. Select and Delete All Lines. …
  5. Select and Copy All Lines. …
  6. Select All In Gvim.

How do I delete files in a folder?

To do so, right-click Start and choose Open Windows Explorer and then browse to locate the file you want to delete. In Windows Explorer, right-click the file or folder that you want to delete and then choose Delete. The Delete File dialog box appears. Click Yes to delete the file.

How do you delete the contents of a folder in Linux?

Open the terminal application. To delete everything in a directory run: rm /path/to/dir/* To remove all sub-directories and files: rm -r /path/to/dir/*

Understanding rm command option that deleted all files in a directory

  1. -r : Remove directories and their contents recursively.
  2. -f : Force option. …
  3. -v : Verbose option.

How do I empty a log file?

How to clean log files in Linux

  1. Check the disk space from the command line. Use the du command to see which files and directories consume the most space inside of the /var/log directory. …
  2. Select the files or directories that you want to clear: …
  3. Empty the files.

How do I delete multiple lines in vi?

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.

What is difference between yank and delete?

The delete command works the same as cut in a modern word processor.… … The y command works like the d command in that yy Yanks a line.… Just as dd.… Deletes a line and yw yanks a word,…y( yanks a sentence, y yanks a paragraph and so on.…

How do I delete a space in vi?

One way to make sure to remove all trailing whitespace in a file is to set an autocmd in your . vimrc file. Every time the user issues a :w command, Vim will automatically remove all trailing whitespace before saving.

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