23. How do you add a line to the end of an existing file "myfile" with
date stamp. (1)
Ans : /home/clopez ed test.txt
$a The last line of text. . w
q
24. Display recent 10 java files, (with *.java extension) , in descending
order by time, latest to oldest time. (1)
Ans
:
25. How do you set only read permissions to user, group and others in
octal mode for a file "myfile.txt" ? (2)
Ans:
26.
You observed that some of your group members are fiddling with your file
"myfile" and you wanted to remove the read permission to your group. How do you
do? (1)
Ans:
28.
Here is another long listing of a file. (1)
-rw-r-----
1 Y435678 odms 20 Sep 02 17:03 file.txt.
What
are the owner permissions?
read,
execute
read, write
write, execute
all since s/he is the owner
Ans:
29.
The file “users_data” has the following contents : (1)
Tom
Smith 7.00 15 105.00
Rob Sheryl 8.00 20
160.00
Ken Bradman 7.00 13 91.00
Peter
Smith 6.00 15 90.00
Dennis
Smith 8.00 13 104.00
Tom
Dave 9.00 12
108.00
How
do you sort the above file and redirect the output to another file called
“sortedusers”
Ans
:
20.
What is the command to list files in a directory : (2)
A. Having only three alphabets:
Ans:
B. Starting with a digit and ending with a digit
Ans:
-- http://mail.python.org/mailman/listinfo/python-list
