On Sun, 17 Mar 2013, William Park wrote:
On Sat, Mar 16, 2013 at 10:15:50PM -0400, Chris F.A. Johnson wrote:
On Sun, 17 Mar 2013, Chris Down wrote:
ExprCount() {
for (( i = $1 ; i > 0 ; i-- )); do
:
done
echo "$1 iterations"
}
Or, in a POSIX-compliant manner:
ExprCount() {
i=$1
while [ $(( i -= 1 )) -ge 0 ]; do
:
done
echo Just did $1 iterations using expr math
}
Are you saying that
for (( ; ; ))
is not POSIX?
Right.
But $(( ... )) is POSIX.
--
Chris F.A. Johnson, <http://cfajohnson.com/>
Author:
Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress)
Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
