Shell Programming and Scripting

I'm trying to automate numerous grep searches via shell scripting. However, the output of echo is ONE line whereas grepping from the command line would give line breaks as seen in the file. For example:

test.txt:
12345 - hi
12345 - how
54321 - are
12345 - you

grep output would be:
>grep "12345" test.txt
12345 - hi
12345 - how
12345 - you

using echo within my script to display the grep:
>echo `grep "12345" test.txt`
12345 - hi 12345 - how 12345 - you

Is there anyway to fix that last output to match the previous, i.e. with line breaks rather than all on one line? Or is there some other method?

Thanks!

if grep gives you the output you want why do you want to use it echo?

to get the results you're looking for wrap quotes around it:

Code:

echo "`grep "12345" test`"

I'd imagine that if this is in a script, it may be the case that it's preferable to echo the results of an earlier grep than to waste resources grepping the same thing repeatedly...

Whether it is in a script or not, the output is the same as, but slower to execute than:

Code:

grep 12345 test

In all shells but ksh93, command substitution is a slow operation.

You know what, for some reason I was thinking in terms of him echoing a variable that held the results of an earlier grep...so yeah, echoing it doesn't seem to make a whole lot of sense I suppose.