On Wed, Dec 19, 2001 at 02:30:30PM +0800, xiong zhao <[EMAIL PROTECTED]> wrote:
| Hello. I saw this in a shell script but don't know what it mean:
| ...
| read _ANSWER
| :${_ANSWER:=$DEFAULT}
| ...
| What's the meaning of read and how to use it? And the same question
| about the use of ":" and ":=
Hello. I saw this in a shell script but don't know what it mean:
...
read _ANSWER
:${_ANSWER:=$DEFAULT}
...
What's the meaning of read and how to use it? And the same question
about the use of ":" and ":="? What's the difference between ":="
and simply "="? Can someone explain?
Thanks in advance.
