Make Tab autocomplete regardless of filename case
set completion-ignore-case on
List all matches in case multiple possible completions are possible
set show-all-if-ambiguous on
Immediately add a trailing slash when autocompleting symlinks to directories
set mark-symlinked-directories on
Use the text that has already been typed as the prefix for searching through commands (basically more intelligent Up/Down behavior)
"\e[B": history-search-forward
"\e[A": history-search-backward
Ctrl left, ctrl right for moving on the readline by word
"\e[1;5C": forward-word
"\e[1;5D": backward-word
Do not autocomplete hidden files unless the pattern explicitly begins with a dot
set match-hidden-files off
Show all autocomplete results at once
set page-completions off
If there are more than 200 possible completions for a word, ask to show them all
set completion-query-items 200
Show extra file information when completing, like ls -F does
set visible-stats on
Be more intelligent when autocompleting by also looking at the text after the cursor. For example, when the current line is "cd ~/src/mozil", and the cursor is on the "z", pressing Tab will not autocomplete it to "cd ~/src/mozillail", but to "cd ~/src/mozilla". (This is supported by the Readline used by Bash 4.)
set skip-completed-text on
Allow UTF-8 input and output, instead of showing stuff like $'\0123\0456'
set input-meta on
set output-meta on
set convert-meta off
Use Alt/Meta + Delete to delete the preceding word
"\e[3;3~": kill-word