Delete backward from cursor

`Alt` + `⬅ Backspace`

All hotkeys for PuTTY

Ctrl key bouund Auto-complete file and folder names	`⭾ Tab`
Ctrl key bouund Delete the word before cursor	`Ctrl` + `W`
Ctrl key bouund Clear the line after cursor	`Ctrl` + `K`
Ctrl key bouund Swap the last two characters before the cursor	`Ctrl` + `T`
Ctrl key bouund Swap the last two words before the cursor	`Esc` + `T`
Alt key bound Move forward	`Alt` + `F`
Alt key bound Move backward	`Alt` + `B`
Ctrl key bouund Go to the beginning of the line you are currently typing on	`Ctrl` + `A`
Ctrl key bouund Go to the end of the line you are currently typing on	`Ctrl` + `E`
Ctrl key bouund Clear the screen (similar to the clear command)	`Ctrl` + `L`
Ctrl key bouund Clear the line before the cursor position. If you are at the end of the line, clears the entire line	`Ctrl` + `U`
Ctrl key bouund Same as backspace	`Ctrl` + `H`
Ctrl key bouund Search through previously used commands	`Ctrl` + `R`
Ctrl key bouund Kill whatever you are running	`Ctrl` + `C`
Ctrl key bouund Exit the current shell	`Ctrl` + `D`
Ctrl key bouund Put whatever you are running into a suspended background process. Type fg to restore it	`Ctrl` + `Z`
Alt key bound Move to the first line in the history	`Alt` + `<`
Alt key bound Move to the last line in the history	`Alt` + `>`
Alt key bound Show current completion list	`Alt` + `?`
Alt key bound Insert all possible completions	`Alt` + `*`
Alt key bound Attempt to complete filename	`Alt` + `/`
Alt key bound Yank last argument to previous command	`Alt` + `.`
Alt key bound Capitalize the word	`Alt` + `C`
Alt key bound Delete word	`Alt` + `D`
Alt key bound Make word lowercase	`Alt` + `L`
Alt key bound Search the history forwards non-incremental	`Alt` + `N`
Alt key bound Search the history backwards non-incremental	`Alt` + `P`
Alt key bound Recall command	`Alt` + `R`
Alt key bound Move words around	`Alt` + `T`
Alt key bound Make word uppercase	`Alt` + `U`
Alt key bound Delete backward from cursor	`Alt` + `⬅ Backspace`