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Diffstat (limited to 'source/blog/2014-10-25-os-x-package-receipts.md')
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diff --git a/source/blog/2014-10-25-os-x-package-receipts.md b/source/blog/2014-10-25-os-x-package-receipts.md index 54ec1905..99e20bed 100644 --- a/source/blog/2014-10-25-os-x-package-receipts.md +++ b/source/blog/2014-10-25-os-x-package-receipts.md @@ -2,7 +2,8 @@ title: "OS X package receipts" date: 2014-10-25T13:26:02-0700 date_display: October 25, 2014 ---- +... + I just learned something new. Whenever you install a `pkg` on OS X, OS X stores a receipt of what was installed in `/var/db/receipts` (I'm running OS X 10.9.5 at the time of writing), called a **bom** — bill of materials (I’d rather call it a manifest, whatever). This feature was introduced in NeXTSTEP. From `man 5 bom`: > The Mac OS X Installer uses a file system "bill of materials" to determine which files to install, remove, or upgrade. A bill of materials, **bom**, contains all the files within a directory, along with some information about each file. File information includes: the file's UNIX permissions, its owner and group, its size, its time of last modification, and so on. Also included are a checksum of each file and information about hard links. |