Re: newbie question: how to convert str to int in c-shell?

On 2006-10-31, neo wrote:
hi, i am a newbie in shell. i am using c shell.

If you want to write a script, don't use csh.

say convert a argument to int.
if it is not a int , some flag or message should be got.
how to do so in a neat way?

A simple test for a numeric argument, in a standard shell is:

case $n in
*[!0-9]*) printf "%s\n" "Not a number" ;;
esac


--
Chris F.A. Johnson, author <http://cfaj.freeshell.org/shell>
Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
===== My code in this post, if any, assumes the POSIX locale
===== and is released under the GNU General Public Licence
.

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