Help required on the following...

From: pdqd (pdqd_at_rediffmail.com)
Date: 04/25/03 

Date: 25 Apr 2003 09:21:41 -0700

Hi Friends,
-
   Could you please guide me on the following...
Thanks in advance.

1. How can i use find command so that it searches for only those
directories for which the user who is running the command has
permission?
Also is it possible to skip searching a particular
directory(directories)?

2. How to search for a big chunk of text in a file?

3. How to display few lines starting from nth line of a large file (vi
fails saying memory shortage)

4. What is the best strategy to remove an entry from the PATH variable

5. What is the best strategy to remove nth line (or range of lines)
from a file?

6. I have a file which has got very large line , how could i use the
vi to open such a file?

7. Is it possible to yank a block of text(contiguous but can contian
partial words, lines etc)?

8. Is it possible to search for a string in vi with case insensitive
mode?

9. If i open many files in vi , how will switch between the windows?
(like alt-tab feature of win )

10. How can I know the exact size of a directory? (du <dir-name> lists
file by file ). also, since the output of the du is in blocks, is
there any way i can know the size of block in that particular system?

11. Is there anyway of recovering a deleted file?

11. How can i know the size of physical memory , hardisk(total of all
filesystems) of a system?
-
Regards,
Parimal

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