fstat(1): Fix typo

This is from the Advanced UNIX Programming Course (Fall’23) at NTHU.

MFC after: 3 days
Pull Request: https://github.com/freebsd/freebsd-src/pull/929

usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a pe

usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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Remove $FreeBSD$: one-line nroff pattern

Remove /^\.\\"\s*\$FreeBSD\$$\n/

fstat(1): Add EXAMPLES section

* Add examples covering -f, -m and -p flags.

While here, extend the initial description paragraph to note that fstat(1)
will report on all opened files, belonging to

fstat(1): Add EXAMPLES section

* Add examples covering -f, -m and -p flags.

While here, extend the initial description paragraph to note that fstat(1)
will report on all opened files, belonging to processes the user has access to.
The current paragraph may lead to understand that you can get information on
opened files from processes belonging to other users.

Reviewed by: bjk@, danfe@, gbe@
Approved by: manpages (gbe@)
Differential Revision: https://reviews.freebsd.org/D26949

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Clean up fstat.1

- Sort options in the list & indent for readability.
- Pet linters
- Use "\(em" instead of "--"
- Remove Tn macros
- Use Ql instead of Dq Li
- Add arguments to the -M, -N, -p, a

Clean up fstat.1

- Sort options in the list & indent for readability.
- Pet linters
- Use "\(em" instead of "--"
- Remove Tn macros
- Use Ql instead of Dq Li
- Add arguments to the -M, -N, -p, and -u options in their descriptions.
- Use Sy instead of Li for field names. Li is deprecated, and Ql makes no
sense here.
- Replace a literal block with a list for the table of special names
related to FD.
- Use Ql instead of ``X''.
- Add a dot after etc.
- Reference fuser(1).

MFC after: 1 week

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Grammar fix.

Reported by: imp
Differential Revision: https://reviews.freebsd.org/D21880

Add the fstat -s option to display socket information.

Reviewed by: jilles
MFC after: 1 week
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D21880

Merge ^/head r314420 through r314481.

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

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Merge from head

IFC @ r254014

IFC @253398

Merge fresh head.

Similar to 233760 and 236717, export some more useful info about the
kernel-based POSIX semaphore descriptors to userland via procstat(1) and
fstat(1):
- Change sem file descriptors to track the path

Similar to 233760 and 236717, export some more useful info about the
kernel-based POSIX semaphore descriptors to userland via procstat(1) and
fstat(1):
- Change sem file descriptors to track the pathname they are associated
with and add a ksem_info() method to copy the path out to a
caller-supplied buffer.
- Use the fo_stat() method of shared memory objects and ksem_info() to
export the path, mode, and value of a semaphore via struct kinfo_file.
- Add a struct semstat to the libprocstat(3) interface along with a
procstat_get_sem_info() to export the mode and value of a semaphore.
- Teach fstat about semaphores and to display their path, mode, and value.

MFC after: 2 weeks

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IFC @ r226824

MFC

Get rid of major/minor number distinction.

As of FreeBSD 6, devices can only be opened through devfs. These device
nodes don't have major and minor numbers anymore. The st_rdev field in
struct stat

Get rid of major/minor number distinction.

As of FreeBSD 6, devices can only be opened through devfs. These device
nodes don't have major and minor numbers anymore. The st_rdev field in
struct stat is simply based a copy of st_ino.

Simply display device numbers as hexadecimal, using "%#jx". This is
allowed by POSIX, since it explicitly states things like the following
(example taken from ls(1)):

"If the file is a character special or block special file, the
size of the file may be replaced with implementation-defined
information associated with the device in question."

This makes the output of these commands more compact. For example, ls(1)
now uses approximately four columns less. While there, simplify the
column length calculation from ls(1) by calling snprintf() with a NULL
buffer.

Don't be afraid; if needed one can still obtain individual major/minor
numbers using stat(1).

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Remove the advertising clause from UCB copyrighted files in usr.bin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $F

Remove the advertising clause from UCB copyrighted files in usr.bin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with: imp, rwatson

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Fix typos and spelling mistakes.

Merge from head

- MFC @196061

Add manual page links to advertise procstat(1) a little better.

Approved by: re (kib)

Fix some section references.

Expand *n't contractions.

Add text about jail root directory as well.

Submitted by: "Mark W. Krentel" <krentel@dreamscape.com>