On 08/25/08 20:34, s. keeling wrote:
Ron Johnson <ron.l.johnson@cox.net>:On 08/24/08 11:32, Rick Pasotto wrote:Why pipe it to bc? Keep it in the shell: $ echo $[$[$(date -d 20090824 +%s) - $(date -d 20080724 +%s)] / 86400] 396[snip]One stylistic reason for piping to bc is that some people think that bash's $[] syntax gets too hard to read if you nest it too much.I've been running *nix on my home boxes since '93, and I've never even seen that syntax. That's a bashism, I hope?
Yes. And a relatively modern one at that. Somewhere in the 3.x series.
I do own, and have studied, O'Really's Learning the bash shell.
-- Ron Johnson, Jr. Jefferson LA USA "Do not bite at the bait of pleasure till you know there is no hook beneath it." -- Thomas Jefferson