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h=X-UI-Sender-Class:Date:Subject:To:References:From:In-Reply-To; b=JmZM+YhTPFTLYM+DBc1ir1BdbxQk9ipg6M65CVBIvJd4Lg1mmI6wKD/0cr8wv4dme pIsIQFS1aM+qYS0ethO6UWJl3BQfSalrs8heDkwkFYCFxAdRWMqQ6XJ8AoZ/mGP7ss W9c0M1TxT0CsRjEbuM2PshP7nUFSinI7NsMd8hi0= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [10.0.0.14] ([71.227.85.179]) by mail.gmx.net (mrgmx104 [212.227.17.174]) with ESMTPSA (Nemesis) id 1MulqN-1p23jg06dv-00rt9j for ; Tue, 18 Oct 2022 16:57:35 +0200 Message-ID: <0ea47ef0-f039-41db-4514-b5b70045a9ef@gmx.com> Date: Tue, 18 Oct 2022 10:57:33 -0400 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.3.2 Subject: Re: unintuitive bracketing with return value To: zsh-users@zsh.org References: <4b6eb0b7-ae82-a81f-6a70-784ffc1d39ff@eastlink.ca> Content-Language: en-US From: Eric Cook In-Reply-To: <4b6eb0b7-ae82-a81f-6a70-784ffc1d39ff@eastlink.ca> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:V8t38l/C9k/A7JIKO/pukAaQrQkixZDxpaa/NejfvIcRPfOdT4B CvUGPGf54j7XXANb0xeOzRYvVUEdW7BYUk89+C2WTFstTEU7dHavEk50d/uY8qMRlBFMKbZ 9R130mz/f19JOL6tMwd2P4itgHUfFhm5jQh+actU8kA73kpGeJAWc0qTCEsQHgZ27HL4wfY MY0F27dka7fWe8z+9MfyA== X-UI-Out-Filterresults: notjunk:1;V03:K0:JbpiaLUxVN8=:wOE8/U+m/ZkwsbO6S5xKGC jftb0qFsBucmuegFMACYIVusmOwjqWwbC4whTd2xHCAmcv2HWwyFPQSnfU79e7wsP7JQJo4g6 C0P5n+Pt8aXMituQl+jFM6wKLqoDaev+vyZTBr6eIhh5dyxXzxvQH0B4SCxf02FZd+YSAsllk fFjrflprQH1CnHF9AH42Pk0IPIyllftj6Uk303tKOSCe/dz6/3tq9t2VePNZCkVR8IkTA3EHP 0UCyVjIzuNd7HhlxBJ6xA4aumch2OVPi9GUJZ/1s7mNrsAi05hnAQSeg/+hIWujejaPLDIokG oioo3u7ALlYJ3serVA7yCW4zaAnBsZiNfIYbKsTirXiseYzRcDZq/a+YKnftDvI+UKQEdSVDR zAwcf3ASZPsHpMOSsHP7DSHrelnuWsRv0dEPIvL3mqCOjkwcZ+CBM/ugzOZIE5WeEAl5V6pcc XLMBroSpxwqMRG4HzaRYzO2/bcaK+5fI7WNWrgAnKOo1aKbhRx9AnwuHW/C5kpnFQMiNWQrrP PuqqVgktMnBfW14SOcQT12eCkIdSc+23W6ud1TluPM2akKd2Lcrct6y+6bROUvTaXydd6iBkM 09JUrzSPZYiB46w+KD+69nskDrV2hqSaXY3Z1LGGjAv6jHjdn0tVX/UUuAU/FiBLxxJ/NwpOf IrfPNWRjtelecxJLYHq1ra5/YlfAixwECOOegdm5lJqqrKKmqOiD2N+1Bltok5Q8WVsRPKgtC UfCyJvFGwNUMC05SHLbrT24ANNwPT0cNghDd5Gl+rOPrishwhN++UcGPCV9S1i2KUfDaliGwO r7EjYZxJ9zEPuP1oFlZu7r0oBdRprcW95T1pE1HUUKQFWVovYfTTS4gvXxk6YOLpT37GkZi21 UHEgKK7RGkoGkTHv7OVZgNHVdetrgAlvdpM4kPuNFzRc73mjl2LD38z/YU5GdISyBK9dmIRfi axXR+r7G1PKM0QIUDUCfNraze/WZkYm9oWTBVu9DvKoTtTLjR4vmmD8JFLS7mffjJSkgFFOIP aK6kLbBcz9Tmxtb6dCNWsYzyN+DhkL7pph+SL+dh8BW2bFdL7qVKyObnYU0pWDiLtiLycXR6e b78WyPnpiJfSYPPVJip9Yn2LnhG3diYGQxJIGX7UHiaVdj3bmfdhhTQ2ixOmnyx9PD4VkJ3Fl vqsqxrXo+wd+lefc/kTCv6q+di4iYh3WB6AFTk9xalsz8toaYhwcUEFNKe+ujD/CCwmhUBr+L 7MzOmxDZUHmhVCucGxoK/7RmFJeITUiYcfKGml2bd3WCMxm7K52rys5TGpZED4y35oNAxg5vT D59chZbGckIf0HtVLSbSHE4bL2Kc6h5RNfhAtwgQdsn3Vr0EOebuNcmU4VHX75rX6JZX/2zxC vR5ADUMdagebBK/3Ao8jOYRs//rkz4ytC0p9KDZpa1uZlrHeQYe3odJNI//63p+W6yUtQQPNE +osXaZkGx9myy3gkq07sdkeC1pepN0Ah4awZICMihGUVqzFWdUcUN5vki5jElX9IHPSSudFRd cPIMmLrxOF9zAS4zSGXxWt0xx1k4SzOjYMOHs88tnVyrB X-Seq: 28224 Archived-At: X-Loop: zsh-users@zsh.org Errors-To: zsh-users-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-users-request@zsh.org X-no-archive: yes List-Id: List-Help: , List-Subscribe: , List-Unsubscribe: , List-Post: List-Owner: List-Archive: On 10/18/22 10:47, Ray Andrews wrote: > I vaguely remember mentioning this before but I don't recall what the un= derstanding should be: > > [ "${${1}##*[*?]*}" ] && { > echo "no wildcards"; printenv "$1" } || echo wildcards present > > ... I'm obviously testing for the presence of wildcards before sending "= $1" to 'printenv', unfortunately the '||' responds to the return value of = 'printenv' and not, as I intend, for the '||' to respond to the first test= (presence of wildcards).=C2=A0 If it > was not bracketed there would be no issue of course, but shouldn't the b= rackets do the intuitive thing and force the final '||' to be the alternat= ive to the first '&&'?=C2=A0 It's easy to just write the thing as an 'if/e= lse' statement and avoid the issue, but > still the above seems very counter intuitive.=C2=A0 ... Tho of course on= e could get used to it and prefer it that way but still it seems weird. > > > https://mywiki.wooledge.org/BashPitfalls#pf22