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From: Martijn Dekker <martijn@inlv.org>
To: "dash@vger.kernel.org" <dash@vger.kernel.org>
Subject: [BUG] 'nolog' and 'debug' options cause "$-" to wreak havoc
Date: Wed, 29 Mar 2017 21:02:19 +0200	[thread overview]
Message-ID: <5bdf99b4-2bde-3710-c323-25162ace143f@inlv.org> (raw)

Bug: if either the 'nolog' or the 'debug' option is set, trying to
expand "$-" silently aborts parsing of an entire argument.

$ dash -o nolog -c 'set -fuC; echo "|$- are the options|"; \
	set +o nolog; echo "|$- are the options|"'
|
|uCf are the options|
$ dash -o debug -c 'set -fuC; echo "|$- are the options|"; \
	set +o debug; echo "|$- are the options|"'
|
|uCf are the options|

Also, though the 'nolog' option is POSIX[*] and (apart from this bug)
acts like POSIX, it's not documented the dash man page.

- Martijn

[*] "nolog: Prevent the entry of function definitions into the command
history; see Command History List."
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_25_03

             reply	other threads:[~2017-03-29 19:01 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-29 19:02 Martijn Dekker [this message]
2017-03-29 21:59 ` Stephane Chazelas

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