Which command moves backward one screen?
CTRL+f : Move forward one full screen. CTRL+u : Move backward 1/2 screen. CTRL+b : Move backward one full screen.
Which command moves the cursor down one line?
To move the cursor:
| Command | Moves the cursor |
|---|---|
| j or down arrow | down one line |
| k or up arrow | up one line |
| w | word to the right |
| b | word to the left |
Which command will be used with vi editor to replace single character under cursor with any number of characters?
Substituting Character(s) To substitute one or more characters for the character under the cursor, type s , followed by the new text. Press Esc to return to command mode.
How do I change to lowercase in Linux?
You can change the case of the string very easily by using tr command. To define uppercase, you can use [:upper:] or [A-Z] and to define lowercase you can define [:lower:] or [a-z]. The `tr` command can be used in the following way to convert any string from uppercase to lowercase.
How do I change to lower case in bash?
To convert a string to lowercase in Bash, use tr command. tr stands for translate or transliterate. With tr command we can translate uppercase characters, if any, in the input string to lowercase characters.
How do you Ctrl Z in vi?
on linux, CTRL-Z in vi/vim/gvim mean escape to the console, or put this in the background. you then do whatever you want on the console and type fg (foreground) to bring you back into vim edit session.
What is the command for undo?
Ctrl+Z
To undo an action press Ctrl+Z. If you prefer your mouse, click Undo on the Quick Access Toolbar. You can press Undo (or CTRL+Z) repeatedly if you want to undo multiple steps.
How would you search for a particular string upwards downwards in vi editor?
One can search forward in vim/vi by pressing / and then typing your search pattern/word. To search backward in vi/vim by pressing? and then typing your search pattern/word. Once word found in vim, you can press the n key to go directly to the next occurrence of the word in backwards.