Mail Archives: cygwin/2020/07/02/11:34:51
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| Subject: | Re: How to check cygwin version?
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| <f6c689bd-d40a-de0f-5c46-14053f0b1eef AT SystematicSw DOT ab DOT ca>
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| From: | Norton Allen <allen AT huarp DOT harvard DOT edu>
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| Message-ID: | <0c35113f-7b72-56d0-a032-b0cfa045f7ee@huarp.harvard.edu>
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| Date: | Thu, 2 Jul 2020 11:34:11 -0400
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On 7/2/2020 1:20 AM, Brian Inglis wrote:
> On 2020-07-01 07:36, Jeffrey Walton via Cygwin wrote:
>> I think the documentation leaves a lot to be desired... I'm trying to
>> tell someone what version of Cygwin I am using.
>>
>> There's a FAQ item at
>> https://cygwin.com/faq/faq.html#faq.what.version. It gives this
>> useless advice:
>>
>> To find the version of the Cygwin DLL installed, you can use uname
>> as on Linux or cygcheck. Refer to each command's --help output and
>> the Cygwin User's Guide for more information.
>>
>> OK, let's try it:
>>
>> $ cygcheck -v
>> Usage: cygcheck [-v] [-h] PROGRAM
>> cygcheck -c [-d] [PACKAGE]
>> cygcheck -s [-r] [-v] [-h]
>> cygcheck -k
>> ...
>>
>> OK, -v is what we need:
>>
>> $ cygcheck -v cygwin
>> cygcheck: could not find 'cygwin'
>>
>> OK, another failure.
>>
>> RTFM does not work. Why the hell don't you just state how to check the
>> god damn version?
> Do you think it would help if this FAQ entry were changed to read:
>
> 1.5. What version of Cygwin is this, anyway?
> To find the version of the Cygwin DLL installed, you can use any of the
> Cygwin commands uname -a, uname -srvm, head /proc/version as on Linux, or
> cygcheck -V. Refer to each command's --help output or the Cygwin User's Guide
> for more information.
>
> and please make any further comments, feedback, or suggestions you think would
> help with this entry.
>
> Running the suggested commands with their --help options would have shown you:
>
> $ uname --help
> Usage: uname [OPTION]...
> Print certain system information. With no OPTION, same as -s.
>
> -a, --all print all information, in the following order,
> except omit -p and -i if unknown:
> -s, --kernel-name print the kernel name
> -n, --nodename print the network node hostname
> -r, --kernel-release print the kernel release
> -v, --kernel-version print the kernel version
> -m, --machine print the machine hardware name
> -p, --processor print the processor type (non-portable)
> -i, --hardware-platform print the hardware platform (non-portable)
> -o, --operating-system print the operating system
> --help display this help and exit
> --version output version information and exit
>
> GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
> Full documentation at: <http://www.gnu.org/software/coreutils/uname>
> or available locally via: info '(coreutils) uname invocation'
>
> $ cygcheck --help
> Usage: cygcheck [-v] [-h] PROGRAM
> cygcheck -c [-d] [PACKAGE]
> cygcheck -s [-r] [-v] [-h]
> cygcheck -k
> cygcheck -f FILE [FILE]...
> cygcheck -l [PACKAGE]...
> cygcheck -p REGEXP
> cygcheck --delete-orphaned-installation-keys
> cygcheck -h
>
> List system information, check installed packages, or query package database.
>
> At least one command option or a PROGRAM is required, as shown above.
>
> PROGRAM list library (DLL) dependencies of PROGRAM
> -c, --check-setup show installed version of PACKAGE and verify integrity
> (or for all installed packages if none specified)
> -d, --dump-only just list packages, do not verify (with -c)
> -s, --sysinfo produce diagnostic system information (implies -c)
> -r, --registry also scan registry for Cygwin settings (with -s)
> -k, --keycheck perform a keyboard check session (must be run from a
> plain console only, not from a pty/rxvt/xterm)
> -f, --find-package find the package to which FILE belongs
> -l, --list-package list contents of PACKAGE (or all packages if none given)
> -p, --package-query search for REGEXP in the entire cygwin.com package
> repository (requires internet connectivity)
> --delete-orphaned-installation-keys
> Delete installation keys of old, now unused
> installations from the registry. Requires the right
> to change the registry.
> -v, --verbose produce more verbose output
> -h, --help annotate output with explanatory comments when given
> with another command, otherwise print this help
> -V, --version print the version of cygcheck and exit
>
> Note: -c, -f, and -l only report on packages that are currently installed. To
> search all official Cygwin packages use -p instead. The -p REGEXP matches
> package names, descriptions, and names of files/paths within all packages.
>
I think what is missing in all these suggestions is a clear statement
that for Cygwin's purposes, the cygwin DLL is considered to be the
'kernel', so looking for the 'kernel release' gives you the DLL version.
I think that leap is totally non-obvious.
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