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Reading Users Guide, script don't run???

Link to this post 03 Jun 09

#!/bin/sh
echo "Hi there"
echo "What is your name? Rob"
read NM Rob
echo "Hello $NM"


The book is a bit dated and wondered if the read command syntax changed a bit for bash shell?
I get the first two lines but don't get the hello rob part.

Link to this post 04 Jun 09

tw3ak wrote:

#!/bin/sh
echo "Hi there"
echo "What is your name? Rob"
read NM Rob
echo "Hello $NM"


The book is a bit dated and wondered if the read command syntax changed a bit for bash shell?
I get the first two lines but don't get the hello rob part.

Hmm..well, I can tell you that NM would be set to the first word that was taken as input to the "read" command, and Rob would be set to the second word, if given. E.g.


$ read NM Rob
joe blow
$ echo $NM
joe
$ echo $Rob
blow

To be less obtuse, the script's last line should be

echo "Hello $NM $Rob"

although those variable names don't really make sense.

Link to this post 04 Jun 09

That script was installed exactly as the page was typed I even pasted it once to see if there was something about the read command that I wasn't getting.???

Link to this post 04 Jun 09

tw3ak wrote:

#!/bin/sh
echo "Hi there"
echo "What is your name? Rob"
read NM Rob
echo "Hello $NM"


The book is a bit dated and wondered if the read command syntax changed a bit for bash shell?
I get the first two lines but don't get the hello rob part.

I just had a thought. After you get the first two lines, what do you do?

You've told the script to print out those two lines and then wait for someone to type something in on the keyboard, and press enter. If you're not typing something in and hitting enter, then you're not going to get a "Hello Rob" (the computer has infinite patience, it will wait for years for that keyboard input if necessary...)

In fact, you've asked it for two pieces of input...

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