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I am writing script that will act like the 'comm' utility. My
problem is when trying to read whether the user has entered -123 or -1
or -1...etc.

I currently have:


...

Got it.

addNumber(){
echo "Phone number: \c";
read number;
echo $number;
if [ -z "$number" ] ; then # <==== should be double quoted...
...

Ok, so when a user inputs nothing, simply pressing enter when prompted for a phone number, I get a "./addrbkfct.sh: test: argument expected" error message. I have the following function:
...

Thanks.

Also, would I be able to do assign to a variable the ouput value of the following:

fgrep "matchString" anyfile.dat | wc -l

right now what I have is:

grep "^$1:" myfile.dat;
echo...

"http://www.cs.may.ie/~foo~dtray/cs211/lecture1.htm" <==what?

Ok, I give up. How to differentiate whether you want the first tilde, or the nth.

Oops, my way would make the following acceptable:

"a furious bulldog"

so Ygor's got it.

well...what are the rules/conditions? Will every url be complete as submitted above?

I would grep lines containing the keywords, and pipe to a cut.

I would do:

grep ".*dog.*" temp

Ok, I'm too used to c/java. I want to go through a file to search for lines matching a given string using:

fgrep "matchString" anyfile.dat;

This works like it should, but I would like to record...