I hope you can help me here with my 2 questions on bash scripts

How do I check if entered strings are valid emails or urls?

How would I search and display the variables, of a string that contains variables seperated by ^?

For example, how would I search all the strings with a variable 1 in this file, and then display each number as a seperate variable
2^1^4^5^7
3^7^^4^9^0
3^1^2^7

I know i have to use sed, but I havnt been able to get it right

Hi, and welcome to LQ!

Read the relevant RFCs to determine what
comprises a valid e-mail address or URL, and
then use an appropriate regular expression :)

Something like
egrep -e "[a-zA-Z]+([[:alnum:]]|[.-])*@[a-zA-Z]+([[:alnum:]]|[.-])\.[a-zA-Z]+[[:alnum:]]*"
MAY do the trick, I didn't even bother trying to test
it, but you get the idea...

Sorry, I can't understand what you're trying to
achieve at all ...


Cheers,
Tink

Thanks a lot Tinkster for the valid check script


Sorry for not describing my second question right, I'll try again.

I have a file containing lines of text. Each line is a string. Like this:

^Eminem^Kim^Without Me
^johnny cash^san quentin^A Boy Named Sue
^Beatles^ Hard Days Night^Imagine^Strawberry Fields

So the first string is "^Eminem^Kim^Without Me"

What I want to do is now, split that string into the variables "Eminem" "Kim" and "Without Me", assigning them variable names like author, song1, song2

I also wasnt to be able to search the file for authors and song names

I know I have to use sed, but I havnt been able to get it right

maybe using cut and ^ as the delimeter?

Thanks for help krock923

When I use:

cut -d^ -f1 myalbums

I recieve:

Eminem
johnny cash
Beatles


So, how would I assign the "Eminem" to the variable author1, and "Kim" to song1?