About Regex

ravi_nandula · 06-21-2012, 06:00 AM

Hi Everyone ,

i came to know that Regex is used to make a regular expressions.
And i got an idea that suppose the 2 line

"Got facebook link"
"www.facebook.com"

These 2 need to be done using regex.

can anyone help me out

chrism01 · 06-21-2012, 06:05 AM

Quote:

These 2 need to be done using regex.

That's entirely unclear; exactly what do you want to 'do' ?

Also, which language are you using; there are a lot of slightly different regex engines/tools.
http://regex.info/

ravi_nandula · 06-21-2012, 06:07 AM

Quote:

Originally Posted by chrism01

That's entirely unclear; exactly what do you want to 'do' ?

Also, which language are you using; there are a lot of slightly different regex engines/tools.
http://regex.info/

Those both line should appear as single line and......If I search with with search letter like "GO" it should direct me to facebooklink

pixellany · 06-21-2012, 06:14 AM

Do you mean that you want to write a Regular Expression (Regex) that will match both lines? If so, there could be many answers that would NOT make sense----for example, these will all match both lines

Code:

grep '".*"' filename
grep '^"' filename
grep face filename
grep book filename

I think what you need is to define how to uniquely match those two lines in the context of many others---and you have to be precise in defining what the matching criteria are.

pixellany · 06-21-2012, 06:21 AM

Quote:

Originally Posted by ravi_nandula

Those both line should appear as single line and......If I search with with search letter like "GO" it should direct me to facebooklink

This does not seem to have much to do with your first problem statement---please give a complete description of what you are trying to do.