On Fri, 23 Feb 2001, Britton wrote:
>
> I am trying to do approximately this in a crontab:
>
> SHELL=/bin/bash
> 0 8 * * * prog >/tmp/$(date +%s).extension
>
> and it doesn't work, the command never gets executed. Backtick
> substitution doesn't work either. An identical command with a fixed
> string in place of the $(date +%s) command substitution works perfectly.
> An identical command executed on the command line works perfectly.
> Anyone have any guesses as to what might be going on here?
I guess you were quite reluctant to write a simple script.
My (not-quite-improving) Perl script that could be working:
#!/usr/bin/perl
@lines = `prog`;
$date = `date +%s`;
chomp $date;
$filename = $date.".extension";
open(OUT,">/tmp/$filename");
for (@lines) {
print OUT $_;
}
close(OUT);
exit 0;
Then replace the "proc" in your crontab with the name of the script.
BTW, I believe that the script can be reduced into about three lines;
unfortunately, I don't know how.
Oki
