suggested addition to 'date'
Julian Elischer
julian at elischer.org
Fri Aug 25 19:17:35 UTC 2006
John Baldwin wrote:
>On Friday 18 August 2006 10:45, Oliver Fromme wrote:
>
>
>>Julian Elischer wrote:
>> > BTW I chose 's' without any research.. Date only has the short getopt so
>> > '--' doesn't work, but
>> > there are lots of unsed letters.. a quick survey suggests maybe -p (pipe?)
>> > (suggestions welcome) my favourites of s and f are already used on one
>> > system or another.
>>
>>There's another possibility, which doesn't require a new
>>option letter at all. You could add a new escape sequence
>>to the format string, e.g. "%*". Whenever date(1) is
>>called with a format string containing that sequence, it
>>goes into filter mode and replaces the sequence with the
>>current line. That would also enable you to be more
>>flexible with the placement of the timestamps.
>>For example:
>>
>>$ printf 'foo\nbar\nbaz\n' | date +'%H:%M:%S %*'
>>16:39:58 foo
>>16:39:58 bar
>>16:39:58 baz
>>
>>
>
>I prefer this of all the suggestions so far.
>
>
The trouble wih this is that the format string is interpretted by
strftime() and not by
date, so you would have to pre-parse the string which would be quite a
bit of work.
The size of the patch wold blow out from the current 20 lines (or less)
to many more.
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