Redo the last undone action

`Ctrl` + `↑ Shift` + `Z`

All hotkeys for gedit

Tabs Switch to the next tab to the left	`Ctrl` + `Alt` + `Page Up`
Tabs Switch to the next tab to the right	`Ctrl` + `Alt` + `Page Down`
Working with files Close the current document	`Ctrl` + `W`
Tabs Save all tabs	`Ctrl` + `↑ Shift` + `L`
Tabs Close all tabs	`Ctrl` + `↑ Shift` + `W`
Tabs Reopen the most recently closed tab	`Ctrl` + `↑ Shift` + `T`
Tabs Jump to specific tab	`Alt` + `1` - `9`
Tabs New tab group	`Ctrl` + `Alt` + `N`
Tabs Previous tab group	`Shift` + `Ctrl` + `Alt` + `Page Up`
Tabs Next tab group	`Shift` + `Ctrl` + `Alt` + `Page Down`
Working with files Create a new document in a new window	`Ctrl` + `N`
Working with files Create a new document in a new tab	`Ctrl` + `T`
Working with files Open a document	`Ctrl` + `O`
Working with files Open the Quick Open window	`Alt` + `O`
Working with files Save the current document	`Ctrl` + `S`
Working with files Save the current document with a new filename	`Ctrl` + `↑ Shift` + `S`
Working with files Print the current document	`Ctrl` + `P`
Working with files Print preview	`Ctrl` + `↑ Shift` + `P`
Working with files Quit gedit	`Ctrl` + `Q`
Editing files Move to the beginning of the current line	`Home`
Editing files Move to the end of the current line	`End`
Editing files Move to the beginning of the document	`Ctrl` + `Home`
Editing files Move to the end of the document	`Ctrl` + `End`
Editing files Move the selected word right one word	`Alt` + `→`
Editing files Move the selected word left one word	`Alt` + `←`
Editing files Undo the last action	`Ctrl` + `Z`
Editing files Redo the last undone action	`Ctrl` + `↑ Shift` + `Z`
Editing files Cut the selected text or region and place it on the clipboard	`Ctrl` + `X`
Editing files Copy the selected text or region onto the clipboard	`Ctrl` + `C`
Editing files Paste the contents of the clipboard	`Ctrl` + `V`
Editing files Select all text in the file	`Ctrl` + `A`
Editing files Delete the current line	`Ctrl` + `D`
Editing files Move the selected line up one line	`Alt` + `↑`
Editing files Move the selected line down one line	`Alt` + `↓`
Editing files Add a tab stop	`⭾ Tab`
Editing files Remove a tab stop	`↑ Shift` + `⭾ Tab`
Editing files Convert the selected text to upper case	`Ctrl` + `U`
Editing files Convert the selected text to lower case	`Ctrl` + `L`
Editing files Toggle case of the selected text	`Ctrl` + `~`
Show and hide panes Show / hide the side pane	`F9`
Show and hide panes Show / hide the bottom pane	`Ctrl` + `F9`
Show and hide panes Open the file menu	`F10`
Search Find a string	`Ctrl` + `F`
Search Find the next instance of the string	`Ctrl` + `G`
Search Find the previous instance of the string	`Ctrl` + `↑ Shift` + `G`
Search Search and Replace	`Ctrl` + `H`
Search Clear highlight	`Ctrl` + `↑ Shift` + `K`
Search Goto line	`Ctrl` + `I`
Tools Check spelling	`↑ Shift` + `F7`
Tools Remove trailing spaces (with plugin)	`Alt` + `F12`
Tools Run "make" in the current directory (with plugin)	`F8`
Tools Directory listing (with plugin)	`Ctrl` + `↑ Shift` + `D`
Help Open the gedit user guide	`F1`