wjsullivan.net

Overloading the Machine

NotesBash

Command editing

C-x C-e will open the command line in $EDITOR.

History

`!*`	Designates all arguments of the preceding command.
`!^`	Designates the first argument of the preceding command.
`!$`	Designates the last argument of the preceding command.
`^la^t`	Replaces the -la options with -t in the preceding command.
`sudo !!`	Execute the previous command with sudo.

!whatever:p| Show but don't execute the last command that starts with whatever.

`!!:gs/foo/bar`	Execute the last command, replacing all instances of foo with bar.
`-n`	Go n events back
`:n`	reference a word number
`:p`	just print the event
`!50- foo`	run command 50 replacing the last argument with "foo"
`grep -v`	Shows lines that don't match the pattern
`cp foo{,.bak}`	Make a backup of foo.

Example of find using -exec:

find . -type f -exec file ’{}’ \;

Using History Interactively

Stick the job in the background (ctrl-Z then "bg") then detach it from the terminal (in bash, "disown -h %[jobid]"). You may then close the terminal.

Completion

Add to ~/.bashrc:

# Use bash-completion, if available
if [ -f /etc/bash_completion ]; then
  . /etc/bash_completion
fi

Expansion

M-{} Include all expansions. Also can do things like mkdir -p foo/{cur,new,tmp}.

Keybindings

bind -P will show keybindings.

No live organism can continue for long to exist sanely under conditions of absolute reality; even larks and katydids are supposed, by some, to dream. Hill House, not sane, stood by itself against its hills, holding darkness within; it had stood so for eighty years and might stand for eighty more. Within, walls continued upright, bricks met neatly, floors were firm, and doors were sensibly shut; silence lay steadily against the wood and stone of Hill House, and whatever walked there, walked alone.

-- Shirley Jackson, "The Haunting of Hill House"