Very Computer

by **JGM_van_Ra** » Wed, 24 Mar 1999 04:00:00

> Hi,

> 1. Here's a script.
> ========================================
> #!/bin/csh -f
> set aaa = "A B C"
> echo aaa = "$aaa"

> set bbb = `echo "$aaa"`
> echo bbb = "$bbb"
> ========================================

> 2. And here are the running results.
> ========================================
> aaa = A B C
> bbb = A B C ### Where have the spaces gone? ###
> ========================================

Hi,

Why not like this

#!/bin/csh -f
set aaa = "A B C"
echo aaa = "$aaa"

set bbb = "$aaa"
echo bbb = "$bbb"
Jos van Ras

*** Philips Medical Systems Netherlands
*** System Dev. Cardio/Vascular
*** Hardware, Librarian & Support Unix
*** The Netherlands

*** Homepage:http://www.jgmvanras.demon.nl/

by **Ken Pizzi** » Wed, 24 Mar 1999 04:00:00

On Tue, 23 Mar 1999 12:54:14 GMT,

>#!/bin/csh -f
>set aaa = "A B C"
>echo aaa = "$aaa"

>set bbb = `echo "$aaa"`
>echo bbb = "$bbb"
>aaa = A B C
>bbb = A B C ### Where have the spaces gone? ###

They've gone on tokenization vacation. Try altering your quoting:
% set aaa = "A B C"
% set bbb = "`echo '$aaa'`"
% echo bbb = "$bbb"
bbb = A B C

--Ken Pizzini

by **Martin Rams** » Thu, 25 Mar 1999 04:00:00

On Tue, 23 Mar 1999 20:14:30 GMT,

> > set bbb = `echo "$aaa"`
> > echo bbb = "$bbb"
[...]
> The short answer is that "echo" condensed them.

I don't think this is right. IMHO the problem is that the command
substitution should be quoted!

Regards,
Martin

by **bmar..** » Thu, 25 Mar 1999 04:00:00

>Hi,
>1. Here's a script.
>========================================
>#!/bin/csh -f
>set aaa = "A B C"
>echo aaa = "$aaa"
>set bbb = `echo "$aaa"`
>echo bbb = "$bbb"
>========================================
>2. And here are the running results.
>========================================
>aaa = A B C
>bbb = A B C ### Where have the spaces gone? ###
>========================================

set bbb="`echo \"$aaa\"`"; # or simply set bbb="$aaa"

Net-Tamer V 1.08X - Test Drive

by **Chris Costel** » Tue, 27 Apr 1999 04:00:00

> Hi,

> 1. Here's a script.
> ========================================
> #!/bin/csh -f
> set aaa = "A B C"
> echo aaa = "$aaa"

> set bbb = `echo "$aaa"`
> echo bbb = "$bbb"
> ========================================

> 2. And here are the running results.
> ========================================
> aaa = A B C
> bbb = A B C ### Where have the spaces gone? ###
> ========================================

> Thanks in advance,
> Alex

Try this example:

/usr/home/chris/tmp$ cat foo.csh
echo `echo 'A B C D E F G H IJKMNOPQRSTUVWXYZ'`
echo "`echo 'A B C D E F G H IJKMNOPQRSTUVWXYZ'`"
/usr/home/chris/tmp$ csh foo.csh
A B C D E F G H IJKMNOPQRSTUVWXYZ
A B C D E F G H IJKMNOPQRSTUVWXYZ

Notice the quotes on the second one!

Here's how it works:

echo A B C D E
echo "A B C D E"

echo `echo "A B"`

It takes some figuring...

--
Chris Costello
How do I set my laser printer on stun?