How do I delete all lines above a line in vi?

How do I delete all lines above a line in vi?

Delete All Lines To delete all line you can use either the % symbol that represents all lines or the 1,$ range: Press the Esc key to go to normal mode. Type %d and hit Enter to delete all the lines.

How do I delete a line in vim match pattern?

In order to delete lines matching a pattern in a file using vim editor, you can use ex command, g in combination with d command. To remove lines that contains the string amos , in vim command mode, type the command below and press Enter. This will delete all lines containing the specified keywords.

How do I delete 10 lines in vi editor and undo the changes?

Undo changes in vim / Vi

1. Press the Esc key to go back to the normal mode. ESC.
2. Type u to undo the last change.
3. To undo the two last changes, you would type 2u .
4. Press Ctrl-r to redo changes which were undone. In other words, undo the undos. Typically, known as redo.

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 to delete all lines between two matching patterns?

So overall it is first matching all the lines from ^# to ^\\$ then from those matched lines finding lines that don’t match ^# and don’t match ^\\$ and deleting them using d. $ cat test 1 start 2 end 3 $ sed -n ‘1,/start/p;/end/,$p’ test 1 start end 3 $ sed ‘/start/,/end/d’ test 1 3

How to remove lines between if and end if?

The example below removes lines between “if” and “end if”. All files are scanned, and lines between the two matching patterns are removed ( including them ). IFS=’ ‘ PATTERN_1=”^if” PATTERN_2=”end if” # Search for the 1st pattern in all files under the current directory.

Is there a way to delete all lines in a file?

However it will quit processing completely so if you have multiple files as arguments, the ones after the first matching file won’t be processed. In this case, the delete form is better. This says “print all lines and quit when the matched line is reached” (the -n option (no implicit print) is not used).