Re: What's wrong with this entry in a cron job?

[Freek de Kruijf <f.de.kruijf@gmail.com>]

Op zaterdag 30 maart 2024 12:37:35 CET schreef Leigh Brown:
> Hello,
> 
> On 2024-03-30 10:52, Freek de Kruijf wrote:
> > I have the following line in a cron job:
> > 
> > 1 1 * * * rm -v /srv/db/webhoneypot-$(date --date=yesterday
> > +%Y-%m-%d).json
> > 
> > I get in the journal:
> > 
> > Mar 30 01:01:01 rpi4rasphon CRON[1254]: (root) CMD (rm -v
> > /srv/db/webhoneypot-
> > $(date --date=yesterday +)
> > 
> > and in the e-mail
> > 
> > /bin/sh: 1: Syntax error: end of file unexpected (expecting ")")
> 
> man 5 crontab says:
> [..]
>         The ``sixth'' field (the rest of the line) specifies the command
> to  be
>         run.   The  entire  command  portion  of the line, up to a
> newline or %
>         character, will be executed by /bin/sh or by the shell specified
> in the
>         SHELL  variable of the cronfile.  Percent-signs (%) in the
> command, un‐
>         less escaped with backslash (\), will be changed into  newline
> charac‐
>         ters,  and  all  data  after the first % will be sent to the
> command as
>         standard input.
> 
> Regards,
> 
> Leigh.

Thanks. Would never have imaged this is the case.

-- 

vr.gr.

Freek de Kruijf