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thanks Whiteboard :)
yeah you are right! a more simple code (if any exists) would be more interesting because it requires writing 26 *4 characters
anyways thanks a lot Whiteboard.

thanks Shahul :) it's working smooth

thanks for your effort Whiteboard but 'amar' is enclosed in quotes. In your file the amar is not enclosed in quotes, i want "'amar',akbar" to be replaced with "'anthony'" (ignore double quotes)

amitranjansahu :)
you are very funny !!
i meant i want to reverse the case i want both of them to happen at the same time

suppose file contents are

Laala TIWAri

then the output should be...

thanks amitranjansahu :)
but why can't i use character class??
also the solution that you gave will transform from lower to upper case what if i want to reverse the case? i mean the letters that...

Hello,
can sed be used to convert all letters of a file from uppercase to lowercase and vice versa?i know tr command can be used but with sed is it possible?
i came up with this :-


sed...

Hello,
just needed the help to replace 'amar',akbar with 'anthony' in sed. Here is what i tried but couldn't succeed


sed 's/''amar'',akbar/''anthony''/' file1


thanks in advance :)

thanks pludi :)
you're the man. You replied in a very straight forward manner that even a beginner like me could understand
thanks man again :)

Hello,
what does this follow command imply?

ls -l | sed -n '/^.{5,8\}w/p'


Thanks in advance! i got confused seeing this command in one of the book's exercise

thanks a lot ripat :)

sure

input


s01 lula 6 75 65 55 195
s02 tutu 6 85 90 90 265
s03 laala 5 55 65 75 195
s04 butterkhor 6 70 70 70 210
s05 kuku 7 50 50 40 140


output

s03 laala 5 55 65 75 195
s02 tutu...

Hello,
suppose i have a student.dat file whose format is

studentno studentname semester marks1 marks2 marks3 total

then how can i sort first in semester wise and then total wise? I mean...

THANKS R.T.
such a silly mistake wasted my 30 mins in morning.
thanks again :)

Hello,
i am trying to write a script file in awk which yields me the number of lines,characters and words, i checked it many many times but i am not able to find any mistake in it. Please tell me...

ya you are right divyang. Actually i had to run this command from college to get a better idea. You are right it gives calculated time.

last also doesn't give directly the total time user logged in? it gives just starting and ending time, and i cant subtract date directly like loggedOutTime - loggedInTime. Unix doesn't permit me...

thanks cfajohnson :)
you solved my problem.

Thanks again Franklin52 :)
now things getting into my mind.

Hello,
i know who command gives you the time when particular user logged in. And subtracting today's date and time from the one found in who we can get how much time user logged in. But this can get...

Hello,
say suppose i am processing an file emp.dat the field of which are
deptno empno empname etc
now say suppose i want to change the file to emp.lst then how can i do it? Here i what i...

also why is this not working?


BEGIN{
system("date \"+%H-%M\"")|getline d
}
{

}

thanks Franklin52,
the last one is the easiest for me haha! and can you please tell me how can i do the following in awk script file?


for i in `ls`
do
echo $i
done

Hello,
i was just wondering how can i use shell command in awk script file? say suppose i want to print the date at the top of the report i generate using awk how can i do that? Thanks in advance! :)

cfajohnson :) You're the man. Thanks!!

I dont think you can compare strings with -le -gt -ge. It's meant for only integer comparison.