From: "Bart Schaefer" <schaefer@candle.brasslantern.com>
To: Hrvoje Niksic <hniksic@srce.hr>, Zoltan Hidvegi <hzoli@cs.elte.hu>
Cc: zsh-workers@math.gatech.edu
Subject: Re: Parameter expansion bug?
Date: Thu, 31 Oct 1996 09:47:40 -0800 [thread overview]
Message-ID: <961031094740.ZM6173@candle.brasslantern.com> (raw)
In-Reply-To: Hrvoje Niksic <hniksic@srce.hr> "Re: Parameter expansion bug?" (Oct 31, 5:57pm)
In-Reply-To: Zoltan Hidvegi <hzoli@cs.elte.hu> "Re: Parameter expansion bug?" (Oct 31, 6:04pm)
On Oct 31, 5:57pm, Hrvoje Niksic wrote:
} Subject: Re: Parameter expansion bug?
}
} Bart Schaefer (schaefer@candle.brasslantern.com) wrote:
} > On Oct 31, 5:12pm, Zoltan Hidvegi wrote:
} > } How do you print -n under bash?
} > As nearly as I can tell, `echo -e -n` is the only way.
}
} It doesn't work for me:
}
} `-e' in bash is used to enable interpretation of control sequences
} like \n.
Yes, I know.
On Oct 31, 6:04pm, Zoltan Hidvegi wrote:
} Subject: Re: Parameter expansion bug?
}
} Perhaps you wanted to write
}
} echo -e '\55n'
No, I see how I confused myself. I was trying various combinations like
`echo \\-n` and got as far as:
bash$ echo -e -n\\n
-n
bash$
And then mistakenly though that this meant that only the first parameter
that began with a `-' was interpreted (e.g. that `echo -ne` was required
to get both escapes and no newline), and thus that `echo -e -n` would
work, when in fact it was the presence of the \\n that was causing the
second word to not be interpreted as a switch.
But `echo \\55n` is easier than `echo -ne -n\\n` ...
Interestingly, GNU echo ignores the -e switch; you have to give it -E to
shut off escapes. So `echo ...` and `/bin/echo ...` aren't the same on
my machine, though they accept the same switches. Isn't bash GNUware?
--
Bart Schaefer Brass Lantern Enterprises
http://www.well.com/user/barts http://www.nbn.com/people/lantern
next prev parent reply other threads:[~1996-10-31 17:52 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-03-12 19:03 Buffered stderr on Linux Zoltan Hidvegi
1996-03-12 19:24 ` Bart Schaefer
1996-03-12 20:26 ` Zoltan Hidvegi
1996-03-12 23:17 ` Zoltan Hidvegi
1996-03-13 0:16 ` Steven L Baur
[not found] ` <hzoli@cs.elte.hu>
1996-03-16 18:46 ` Bart Schaefer
1996-04-10 21:41 ` History file locking? Barton E. Schaefer
1996-04-10 22:16 ` Daniel Dignam
1996-06-26 13:51 ` Use of qualifiers without glob pattern? Bart Schaefer
1996-06-26 14:01 ` Regression tests Bas V. de Bakker
1996-06-26 14:52 ` Use of qualifiers without glob pattern? Zoltan Hidvegi
1996-06-26 15:54 ` Bart Schaefer
1996-06-27 1:03 ` Zoltan Hidvegi
1996-10-31 16:55 ` Parameter expansion bug? Bart Schaefer
1996-10-31 16:57 ` Hrvoje Niksic
1996-10-31 17:04 ` Zoltan Hidvegi
1996-10-31 17:47 ` Bart Schaefer [this message]
1996-12-13 3:37 ` fifo configure check Bart Schaefer
1996-12-13 8:58 ` fifo configure check (seems to work here: Solaris 2.4) C. v. Stuckrad
1996-12-13 14:44 ` fifo configure check Zefram
1996-12-13 17:33 ` Zoltan Hidvegi
[not found] ` <wayne@clari.net>
1997-01-31 22:01 ` history-search-backward Bart Schaefer
1996-04-10 10:31 History file locking? Russell Senior
1996-04-10 12:12 ` Zefram
1996-04-10 12:41 ` Zoltan Hidvegi
1996-04-10 12:50 ` Zefram
[not found] ` <A.Main@dcs.warwick.ac.uk>
1996-04-10 16:26 ` Barton E. Schaefer
1996-04-10 17:08 ` Anthony Heading
[not found] ` <aheading@jpmorgan.com>
1996-04-10 17:12 ` Barton E. Schaefer
1996-04-10 18:03 ` Anthony Heading
1996-06-05 21:25 ` Builtin append() and prepend() to PATH, CDPATH, etc Bart Schaefer
[not found] ` <schaefer@candle.brasslantern.com>
1996-06-10 19:22 ` Clinton Bunch
1996-06-10 19:54 ` Bart Schaefer
1996-06-10 20:24 ` Hrvoje Niksic
1996-06-10 20:58 ` Clinton Bunch
1996-06-24 18:26 ` BUG: useheap in doexpandhist() Barton E. Schaefer
1996-06-24 19:11 ` Zoltan Hidvegi
1996-06-24 21:20 ` Barton E. Schaefer
1996-06-25 0:01 ` Zoltan Hidvegi
1996-06-25 0:22 ` Barton E. Schaefer
1996-07-23 20:01 ` Bug in case stmt with '(' Morris M. Siegel
1996-07-23 21:55 ` Bart Schaefer
1996-07-24 8:29 ` Zefram
1996-07-24 9:52 ` Peter Stephenson
1996-07-24 11:10 ` Bart Schaefer
1996-07-24 14:16 ` Zoltan Hidvegi
1996-04-10 21:21 ` History file locking? Zoltan Hidvegi
1996-06-02 17:59 Builtin append() and prepend() to PATH, CDPATH, etc Fung-Chai Lim
1996-06-02 21:26 ` Zoltan Hidvegi
[not found] ` <1062.199606041027@stone.dcs.warwick.ac.uk>
1996-06-22 20:12 BUG: useheap in doexpandhist() Bart Schaefer
[not found] <17651.199607222123@stone.dcs.warwick.ac.uk>
1996-07-23 14:08 ` Bug in case stmt with '(' Zoltan Hidvegi
1996-07-23 16:25 ` Bart Schaefer
1996-10-31 14:41 Parameter expansion bug? Anthony Heading
1996-10-31 15:13 ` Hrvoje Niksic
1996-10-31 16:12 ` Zoltan Hidvegi
1996-10-31 20:49 ` Anthony Heading
1996-12-13 2:30 fifo configure check Zoltan Hidvegi
1997-01-31 10:47 history-search-backward Peter Stephenson
1997-01-31 12:16 ` history-search-backward Zefram
1997-01-31 12:42 ` history-search-backward Peter Stephenson
1997-01-31 15:02 ` history-search-backward Bart Schaefer
1997-01-31 15:23 ` history-search-backward Vinnie Shelton
1997-01-31 19:02 ` history-search-backward Zoltan Hidvegi
1997-01-31 19:13 ` history-search-backward Wayne Davison
2001-04-27 19:54 comptest* failed to load module: zsh/termcap Peter Whaite
2001-04-28 6:10 ` Bart Schaefer
2001-04-28 8:55 ` Andrej Borsenkow
2001-04-30 15:44 ` Peter Whaite
2001-04-30 16:30 ` Bart Schaefer
2001-04-30 16:47 ` Andrej Borsenkow
2001-04-30 17:16 ` PATCH: " Bart Schaefer
2001-04-30 18:54 ` Peter Whaite
2001-04-30 19:12 ` Bart Schaefer
2001-04-30 15:32 ` Peter Whaite
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