On 08/25/08 20:34, s. keeling wrote:
Ron Johnson <[EMAIL PROTECTED]>:
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
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