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lang-bash
/etc/os-releaseon Git for Windows SDK (MSYS2), because it will result inNAME=MSYSwhenuname -omgives a uniquer answer (x86_64 Msys)./etc/*releasefiles don't require their lines to be in any particular order. Depending on the first line to be a specific field is fragile, so while using this as a generic one-liner on the command line probably feels great I wouldn't depend upon it for a shell script.