by Can Chan » Mon, 13 May 2002 06:59:47
by Chris F.A. Johnso » Mon, 13 May 2002 07:18:18
--
=================================================================
by Chris F.A. Johnso » Mon, 13 May 2002 07:22:12
> case $1 in
> *-*) echo "Contains hyphen" ;;
-*) echo "Begins with hyphen" ;;
Of course, if you want to parse options on the command line, you
should look at getopts.
--Quote:> *) echo "No hyphen"" ;;
> esac
by those who know me have no need of my nam » Mon, 13 May 2002 07:16:25
case $1 inQuote:>Hi, I'm trying to write a shell script for sh and I need to check whether
>the command line argument $1 contains the character "-" (hyphen) as its
>first character. I've tried so many ways but none worked for me. anyone
>know how this could be done?
--
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by Juergen Sal » Mon, 13 May 2002 07:45:34
For parsing command line arguments it may also be a
good idea to consider the ?getopts? command.
Best regards - Juergen
You haven't allocated memory for temp. Currently temp is a pointer
to memory. But you haven't set it up to point to anything.
In the simple case, you need something like this
static char temp[MAXSIZE];
...
if (pos+len-1 > MAXSIZE) {
printf("too large for internal buffer\n");
return buff;
}
Of course this limits the size of characters. You can use dynamic
memory allocation to increase the size of the buffer if needed.
That's a lot more code, but it works over a wider range of cases.
-paul-
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