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From: | Linda Walsh |
Subject: | Re: ! in PS1 in posix mode |
Date: | Mon, 12 Oct 2015 22:46:52 -0700 |
User-agent: | Thunderbird |
Chet Ramey wrote:
On 10/12/15 7:02 PM, Linda Walsh wrote:It happens in posix mode.--- How lame! It's a '!' in a quoted string. Another example of posix braindeath -- how long before people realize that the thing branded 'posix' now isn't the real posix that was started to *describe* behaviors, not prescribe or proscribe behaviors.Do you realize that this prompt expansion was in ksh since at least ksh-86? ksh-88 was one of the Posix base documents, and that expansion was estabished behavior by the time Posix started its work.
--- Haven't used ksh for some time....I thought the '!' stuff came from csh? It seemed so pointless, since having to look up things by command number I thought, was way too much work... searching via a string in the line seemed so much faster... For stuff I typed last week or earlier, I'd use grep on the hist files. I thought to have all my hist files merged and deduped... but the resulting master hist file -- .. I used it for a while (somewhat accidently as it was renamed to a normal hist file @ around 2-3M in length). command response was quite slow (took a while to figure out it was the history updating every command that caused a delay of about2-3 seconds/command). I don't think I have all the kinks in the combining routines worked
out yet either... but certainly wouldn't want to switch to the newest master @ 6.4M until history updating is sped up a bit... (I'm not holding my break... at least I can still browse/grep it by tty#)...
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