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Showing results 1 to 25 of 44 Search took 0.00 seconds. Search: Posts Made By: prasanna1157

Forum: Shell Programming and Scripting 11-06-2010

Reading Standard Input

2,302

Posted By

Thanks Jim. I would like to read...

Thanks Jim.

I would like to read interactively from the shell in the middle of the script.

The shell should wait for the user to enter multiple lines, read and store it in a variable rather...

Forum: Shell Programming and Scripting 11-06-2010

Reading Standard Input

2,302

Posted By

Reading Standard Input

Hello,
I am new to scripting.

How do I read multiple lines from the command line?

I know read reads one line, but if I have to read multiple lines, how should I do?

Thanks,...

Forum: UNIX for Dummies Questions & Answers 10-30-2010

System Variables

2,468

Posted By

System Variables

Is there something called system variables in Unix?

Can someone list a few of them?

Does it include variables like HOME, TERM, PWD etc.?

Forum: Shell Programming and Scripting 10-19-2010

grep backreferencing question

6,494

Posted By

Yes, first is \1. Thanks.

Yes, first is \1.

Thanks.

Forum: Shell Programming and Scripting 10-19-2010

grep backreferencing question

6,494

Posted By

If we have $a\(b$\) Which is \1, which is...

If we have $a\(b$\)

Which is \1, which is \2?

Forum: Shell Programming and Scripting 10-19-2010

grep backreferencing question

6,494

Posted By

grep backreferencing question

To be clear:

int a123,b,c; --- legal
int 12a,b; ---- illegal since the variable starts with a number
int A,b,c ---- illegal since the variable starts with [A-Z]

A few valid...

Forum: Shell Programming and Scripting 10-19-2010

grep backreferencing question

6,494

Posted By

Thanks. ---------- Post updated at 02:59 PM...

Thanks.

---------- Post updated at 02:59 PM ---------- Previous update was at 02:56 PM ----------

Oh, sorry. Yes, I did not state it initially.

One more question, the .* makes it match...

Forum: Shell Programming and Scripting 10-19-2010

grep backreferencing question

6,494

Posted By

It works even if I remove all the \<\> from the...

It works even if I remove all the \<\> from the above code. Can you explain how?

Forum: Shell Programming and Scripting 10-19-2010

grep backreferencing question

6,494

Posted By

grep backreferencing question

>>>> Thanks lot. The only problem with the above is, it matches illegal declarations also.

like, int a,b,,b; int a,b,b,;

---------- Post updated at 02:20 PM ---------- Previous update was at...

Forum: Shell Programming and Scripting 10-19-2010

grep backreferencing question

6,494

Posted By

grep backreferencing question

Hello,
My input would be :
###Anything
int b,c,a;
int a,b,b;
###Anything
int c,d,c;
int k,l;
###ANYTHING

Many declarations interspersed with other statements. I am trying...

Forum: Shell Programming and Scripting 10-19-2010

awk script - reading input lines

1,508

Posted By

awk script - reading input lines

Can I do something like,

if($0==/^int.*$/) {

print "Declaration"

}

for an input like: int a=5;

If the syntax is right, it is not working for me, but I am not sure about the syntax....

Forum: Shell Programming and Scripting 10-18-2010

sed to parse html

12,792

Posted By

Thanks a lot.

Thanks a lot.

Forum: Shell Programming and Scripting 10-18-2010

sed to parse html

12,792

Posted By

Thanks a lot. Is the regex not greedy? Would...

Thanks a lot.

Is the regex not greedy? Would it not match the last </table> that it sees, if there are other table tags below our </table>

Thanks,
Prasanna

Forum: Shell Programming and Scripting 10-18-2010

sed to parse html

12,792

Posted By

sed to parse html

Hello,
I have a html file like this :

<html>
...
...
...
<table>
.......
......
</table>
<table name = "hi">
......
.....
...
</table>
<h1> Welcome </h1>
...

Forum: Shell Programming and Scripting 10-18-2010

Print lines where variables occur more than once using grep

4,512

Posted By

Thanks a lot for your reply. Yes, I got to...

Thanks a lot for your reply.

Yes, I got to that too. But I would want to match any variable(not only the first), if it occurs more than once.

Thanks,
Prasanna

Forum: Shell Programming and Scripting 10-18-2010

awk

1,147

Posted By

Thanks for the replies. My desired output is...

Thanks for the replies.

My desired output is :

1
2
3
4
5
9

Thanks,
Prasanna

Forum: Shell Programming and Scripting 10-18-2010

Print lines where variables occur more than once using grep

4,512

Posted By

Print lines where variables occur more than once using grep

Hello,
I want to only print lines where variables occur more than once using grep.

For eg:

Input:
$this is a comment
int a,b,c,b;
int b,c;
int d,e;
int f,g,f;
x=y+5;

For the...

Forum: Shell Programming and Scripting 10-18-2010

awk

1,147

Posted By

awk

Hello,
Is there a way to print only unique lines in awk?

Suppose I have to print :
1,2,3
3,4,5
9,3

I have to print all the numbers only once. Is there a way to print uniquely using...

Forum: Shell Programming and Scripting 10-17-2010

awk

1,045

Posted By

I tried to use space as the delimiter, and then...

I tried to use space as the delimiter, and then take out $1, and $2. Didn't work.

For printing on different lines, I think I could use the NF, and then print a new line. But I don't know how to...

Forum: Shell Programming and Scripting 10-17-2010

awk

1,045

Posted By

awk

Hello,
I have an input like :

int a,b,c,a;
int d,e,a;
int f,d;

Note the ";" at the end of the line, and the spaces before and after the "int". There could be multiple...

Forum: Shell Programming and Scripting 10-16-2010

grep question

1,590

Posted By

grep question

Hello,
Is there a way in grep to remember patterns?

For eg: int a,b,c,d,a;

If a variable is declared twice, like in the previous example, I should be able to print only those lines....

Forum: Shell Programming and Scripting 10-01-2010

find command

1,616

Posted By

Thanks for the post. No, I am just exploring...

Thanks for the post.

No, I am just exploring the options only in find.

There should be a way to do it only using fin?

Forum: Shell Programming and Scripting 10-01-2010

find command

1,616

Posted By

Yes thanks, but I am trying if I could do that...

Yes thanks, but I am trying if I could do that only using find and its options.

Can you think of anyway?

---------- Post updated at 02:50 PM ---------- Previous update was at 02:34 PM...

Forum: Shell Programming and Scripting 10-01-2010

find command

1,616

Posted By

Not using regular expressions?

Not using regular expressions?

Forum: Shell Programming and Scripting 10-01-2010

find command

1,616

Posted By

find command

Hello,
I am doing something like this:

find "dir" -type f

I want my find to return only files that begin with a number!

Is there a way to do this, using the -name option or...

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