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Emacs is the text editor we recommend you use. It is very flexible
and powerful. For an introduction to Emacs, try this
page (you may not be able to use g++ from within your Emacs,
however).
to start Emacs, type emacs at the system prompt. To leave
Emacs, type C-x C-c from within Emacs.
Below is a list of commonly used commands in Emacs. In all
the following, M means the meta-key (the diamond-key or
sometimes the Esc key) and C means the Control key. M-
or C- means hold down the meta or control key and hit the
key(s) following the -.
- C-x C-c - quit Emacs.
- C-x C-f - open a file in Emacs.
- C-x C-s - save a file.
- C-x C-w - save a file under a different name.
- C-g - abandon a command that you've goofed up.
- C-s - search forward for a specific string.
- C-r - search backward for a specific string.
- C-M-s - do a regual expression search.
- C-v - scroll to the next scrren.
- M-v - scroll to the previous screen.
- M-% - query replace a string or regular expression (it'll query
at each occurrence; hit the space bar to replace, the delete key to
skip to the next one without replacing, or the Esc key to exit the
query-replace).
- C-x 1 - delete all other windows.
- C-x 2 - split this window in two vertically.
- C-x b - switch to another window.
- M-q - fill the current paragraph.
- M-< - go to the start of the buffer.
- M-> - go to the end of the buffer.
Emacs supports tab completion, so for instance if you have a long file
name starting with li, you can do C-x C-f li and then
hit the tab key and it should finish the file name for you.
You may also be interested in etags, which
helps you find all occurences of a function name in different files.
Emacs has excellent documentation and help facilities, including help
on how to customize your Emacs. To get into the Emacs info files,
from within an Emacs buffer type:
- M-h i to enter info
- m Emacs to get info on Emacs
- m Concept Index to get info on concepts
- m program editing to get info on programs
- m Tags to get info on tags
From there, other commands will let you move around.
- p to go to the previous topic
- u to go up one level
- n to go to the next topic
- m NAME to go to the topic NAME if NAME is on the menu for this topic.
The menus are clearly marked in the info.
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