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30/10/2006, 19h32

On Mon, 30 Oct 2006 13:18:15 GMT, Peter
<peter@localhost.com> wrote:
> # base is one of hourly, daily, etc. single word, no spaces
> # lockdir has slashes but no spaces
>
> if [ -e ${LOCKDIR}/cron.$BASE ]
>
> Is BASE not quoted or braced because it is a single word with no escape
> type chars? Why is LOCKDIR in braces? Why are quoted UNnecessary?
>
As far as I know, it is always safe to use braces. Possibly the script
was written by two or more people, or the author had previously written
something that required braces, such as ${LOCKDIR:-default}

--
If your hands are clean and your cause is just and your demands are
reasonable, at least it's a start.

30/10/2006, 19h32	#4
Bill Marcum Messages: n/a Hébergeur:	Re: Question re: braces and quotes On Mon, 30 Oct 2006 13:18:15 GMT, Peter <peter@localhost.com> wrote: > # base is one of hourly, daily, etc. single word, no spaces > # lockdir has slashes but no spaces > > if [ -e ${LOCKDIR}/cron.$BASE ] > > Is BASE not quoted or braced because it is a single word with no escape > type chars? Why is LOCKDIR in braces? Why are quoted UNnecessary? > As far as I know, it is always safe to use braces. Possibly the script was written by two or more people, or the author had previously written something that required braces, such as ${LOCKDIR:-default} -- If your hands are clean and your cause is just and your demands are reasonable, at least it's a start.