gdb.info: Readline Killing Commands

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Readline Killing Commands

"Killing" text means to delete the text from the line, but to save it
away for later use, usually by "yanking" (re-inserting) it back into
the line.  (`Cut' and `paste' are more recent jargon for `kill' and
`yank'.)
   If the description for a command says that it `kills' text, then you
can be sure that you can get the text back in a different (or the same)
place later.
   When you use a kill command, the text is saved in a "kill-ring".
Any number of consecutive kills save all of the killed text together, so
that when you yank it back, you get it all.  The kill ring is not line
specific; the text that you killed on a previously typed line is
available to be yanked back later, when you are typing another line.
   Here is the list of commands for killing text.
`C-k'
     Kill the text from the current cursor position to the end of the
     line.
`M-d'
     Kill from the cursor to the end of the current word, or, if between
     words, to the end of the next word.  Word boundaries are the same
     as those used by `M-f'.
`M-<DEL>'
     Kill from the cursor the start of the current word, or, if between
     words, to the start of the previous word.  Word boundaries are the
     same as those used by `M-b'.
`C-w'
     Kill from the cursor to the previous whitespace.  This is
     different than `M-<DEL>' because the word boundaries differ.
   Here is how to "yank" the text back into the line.  Yanking means to
copy the most-recently-killed text from the kill buffer.
`C-y'
     Yank the most recently killed text back into the buffer at the
     cursor.
`M-y'
     Rotate the kill-ring, and yank the new top.  You can only do this
     if the prior command is `C-y' or `M-y'.