Question bank

Q. How to run eclipse from different java bin?

oldbee — Wed, 20 Jul 2011 10:01:48 +0000

Q. How to run eclipse from different java bin?

Ans. If you have 2 or more versions of java on your machine you can run eclipse from command line giving the path of java bin directory:

./eclipse -vm /home/lib/bin

where /home/lib/bin contains java bin file.

How to search string in list of files using grep?

oldbee — Wed, 13 Jul 2011 11:32:07 +0000

Q. How to search string in list of files using grep?

Ans.

grep -R “String” directory/*

Q. How to figure out the port in use in linux?

oldbee — Tue, 12 Jul 2011 05:21:50 +0000

Q. How to figure out the port in use in linux?

Ans.

netstat -atun

Set terminal mode to vi

oldbee — Thu, 02 Jun 2011 09:00:42 +0000

Q. How to set terminal mode to vi editor mode
Ans.
set -o vi
Or.
set editing-mode vi
set keymap vi

vi editor cheat sheet

oldbee — Fri, 27 May 2011 03:40:15 +0000

1. Scroll down

CTRL-f

CTRL – d

2. Scroll up

CTRL-b

CTRL – u

3. Quit vim quickly

ZZ – with save

ZQ – without save

4. To see where you are in the file

CTRL-g

5. To see where you in the file in detail

g-CTRL-g

6. Go to a line number 23

ESC-:-23

7. Move by percentage in the file

e.g. 25%

8. Move through first non blank character in the next lines:

ENTER

9. Move through first non blank character in the previous lines:

- [hyphen]

10. Bookmarks

m sets the bookmark at

` takes you to the bookmark

‘ takes you to the line of the bookmark

lowercase bookmark is local to the buffer

upper case bookmark is global in the files

11. Tabs:

:tabnew filename.txt opens the file in the new tab

gt – moves between the tabs

12. See line numbers

:set number

13: Search for a word under the cursor

Forward search = *

Backward search = #

aquamac: how to toggle full screen mode?

oldbee — Tue, 24 May 2011 08:23:47 +0000

Q. aquamac: how to toggle full screen mode?

Ans.

Press command+shift+return

How to run .bin files?

oldbee — Fri, 20 May 2011 08:39:30 +0000

Q. How to run .bin files?

Ans.

chmod +x file.bin
./file.bin

Where is carbon emacs configuration init file?

oldbee — Wed, 18 May 2011 07:16:39 +0000

Q. Where is carbon emacs configuration init file?

Ans.

/Applications/Emacs.app/Contents/Resources/site-lisp/site-start.el

How to attach file extensions as php in emacs?

oldbee — Tue, 17 May 2011 12:03:55 +0000

Q. How to attach file extensions as php in emacs?

Ans. Open .emacs file in editor

Add following lines to tell emacs to treat certain extensions as php:

(add-to-list ‘auto-mode-alist ‘(“\\.php$” . php-mode))
(add-to-list ‘auto-mode-alist ‘(“\\.inc$” . php-mode))
(add-to-list ‘auto-mode-alist ‘(“\\.ctl$” . php-mode))

Where is the location of vimrc file in mac os?

oldbee — Wed, 11 May 2011 06:19:59 +0000

Q. Where is the location of vimrc file in mac os?

Ans. /usr/share/vim/