Redirect to a Variable? Or is it cmd cap?

oxoxo · #1 (**permalink**) 11-22-2008

Hi,

Im reading an ANSI text file and greping for a pattern. Then i cut what i dont need from that pattern. So now i just have what i need. What i have now just so happens to be a constant integer. How can i save this integer in a varaible? Or do i use command capture in some form?

Code:

cat Hello.txt | egrep "That One Pattern" | awk '{print $NF}'

Also..This command might be really useful to me, i just dont understand it.
Since maybe i can use these varaibles with the one i would like to store above..

Code:

awk '{for (i=1; i<=NF; i++) s=s+$i}; END{print s}'

oxoxo · #2 (**permalink**) 11-22-2008

Code:

cat Hello.txt | egrep "That One Pattern" | awk '{print $NF}'

I have a value in that code. But i cant add it to anything. Awk has its own language so i cant change the NF variable to preform any arithmetic with other command lines...Not that i could of anyway. right?

So i used another method:

Code:

cat Hello.txt | egrep "That One Pattern" | cut -d':' -f2

That code has a value as well. How would i store it in a varaible??

Code:

Value=Hello.txt | egrep "That one Pattern" | cut -d':' -f2

har har har. But i really dont know.

-----------------------------------------------
Everybody looks cool at blacklight parties
execpt for me, because i was under the impretion
that the mustard stain came out...
------------------------------------------------

vbe · #3 (**permalink**) 11-22-2008

Dont undestand what you want...
Is it assign to a variable the result of one of your commands above?
in ksh you would do so like that:

Code:

VAL1=$(cat Hello.txt | egrep "That One Pattern" | awk '{print $NF}')
#to check
echo " VAL1 = " $VAL1

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
redirect cat to variable	shailesh_arya	Shell Programming and Scripting	7	07-10-2008 05:34 AM
after grep i want to redirect it to some variable	mail2sant	Shell Programming and Scripting	2	04-07-2008 10:26 AM
Redirect to variable	MrAd	UNIX for Dummies Questions & Answers	2	05-07-2007 05:18 PM
Redirect Output In Variable	ZINGARO	UNIX for Dummies Questions & Answers	1	08-02-2006 07:56 AM
please help: how to redirect input into a variable	artur80	Shell Programming and Scripting	2	11-17-2002 10:18 AM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode	Rate This Thread:


	Powered by