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Tricky egrep

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Operating Systems Solaris Tricky egrep
# 1  
Old 03-11-2011
Question Tricky egrep
Hi folks!

My first post here.

I'm working on a script that retrieves a range of files from a list depending on a range of time.
UPDATE:
I've seen it could be difficult to read all this thing, so I'll make a summarize it..

How come I do this and take a result..
Code:
grep "..\:.." lista.new | egrep 'Mar 10 ((1[4-9]|2[0-9]|3[0-4]):([5-5][4-9]|[4-5][0-9]))|Mar 11 (([0-1][0-4]:[0-5][0-4])|([0-1][0-3]:[0-5][0-9]))'
drwxr-x---   3 atxiph   was6gp        20480 Mar 11 11:11 PRUEBAS_SENTINESI
drwxr-x---   3 atxiph   was6gp        20480 Mar 10 23:51 PRUEBAS_SENTINESI
drwxr-x---   3 atxiph   was6gp        20480 Mar 10 18:51 PRUEBAS_SENTINESI

..and this does nothing?

Code:
grep "..\:.." lista.new | egrep '$comando'

knowing thet $comando is the same egrep..
Code:
echo $comando
Mar 10 ((1[4-9]|2[0-9]|3[0-4]):([5-5][4-9]|[4-5][0-9]))|Mar 11 (([0-1][0-4]:[0-5][0-4])|([0-1][0-3]:[0-5][0-9]))

Ideas?
Last edited by kl0x; 03-11-2011 at 10:09 AM..
# 2  
Old 03-12-2011
Quote:
Originally Posted by kl0x
Hi folks!

How come
.
.
.this does nothing?

Code:
grep "..\:.." lista.new | egrep '$comando'

knowing thet $comando is the same egrep..
[CODE]Ideas?
No shell will look inside single quotes. Try this:
Code:
echo '$comando'

instead of
Code:
echo $comando

to see what egrep is seeing.
# 3  
Old 03-12-2011
Hi!

Thank you for your reply. The thing is that the egrep doesn't work, the echo works fine (It's just to make sure that $comand is the correct string).

So egrep '$comand' won't work while egrep 'inside of $comand' will..

I'm not able to see it!Smilie
# 4  
Old 03-12-2011
Your echo works "fine" because you have no single quotes. (Actually, it has mislead you.) Now go and try the alternate echo I gave you. The one with the single quotes. This is the echo that will show you what is happening.
# 5  
Old 03-12-2011
I got you, I'll try to find how to do it, thx

---------- Post updated at 06:17 PM ---------- Previous update was at 06:13 PM ----------

Ok I got it like this:
Code:
grep "..\:.." lista.new | egrep "$comando"

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