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From: | Antonio Diaz Diaz |
Subject: | Re: Warn when editing read-only files |
Date: | Mon, 11 Dec 2023 16:12:35 +0100 |
User-agent: | Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14 |
Andrew L. Moore wrote:
Antonio Diaz Diaz <antonio@gnu.org> writes: ] How do you propose to implement such a warning while remaining ] POSIX-compliant? In github.com/slewsys/ed this is implemented by reporting 'Read-only' if ed is in verbose mode: $ ed -v /etc/os-release /etc/os-release: File is read-only 735
I find it less intrusive what is already implemented in GNU ed 1.20-pre3; warn only if trying to modify the buffer:
$ ed /etc/profile 2840 1d /etc/profile: warning: read-only file
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