$a is unset.
Rob Sims wrote:
On Thu, Oct 13, 2005 at 08:18:05AM -0700, Freddy Freeloader wrote:
Hi all,
I downloaded the Advanced Bash Scripting Guide the other day an have
started to work my way through it. I'm fairly new to bash so I get more
than a little confused when the output I get is nothing similar to what
the ABS Guide says it should be.
Here is what has me confused at the moment.
b=${a/23/BB}
echo "b = $b"
Now the ABS guide says that where I'm setting b it should be
substituting BB for 23. It also says that the output of 'echo "b - $b"'
should be: b = BB35
However, what I get as output is as follows:
[EMAIL PROTECTED]:~$ echo "b = $b"
b = total 520716
drwxr-sr-x 2 ffreeloader ftp 48 2005-10-13 07:50 script
-rw-r--r-- 1 ffreeloader ftp 532692172 2005-10-12 09:38 server_2003.zip
What does the last line containing 'a=' look like? b=${a/23/BB} sets
b = a if a contains no '23.'
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