Add -M and -q options to df(1).

-q suppresses warning output (rather than redirecting stderr, which
also buries error messages, which -q does not).

-M requires each arg given to be the name of a mount point, and
issues a warning, and ignores the arg, if it is not. This allows
scripts (etc) to have a whole list of places for which to produce df
output, while only listing the ones that are actually mounted (rather
than simply listing the filesystem containing the mount point instead -
perhaps several times). (If there are no args, -M is a no-op).

If the options aren't given, nothing alters.

Typo correction: s/givem/given/.

branches: 1.58.4;
Sort options, fix macro, add RCS Id.

Add 4 new flags:
-b (from FreeBSD) - set blocksize to blocks (512 bytes)
(overrides a contrary setting in BLOCKSIZE)
-H (from FreeBSD and Linux): -h using SI units (powers of 10). Ugh.
-N suppress the header line (except with -P which requires it).
-f show only free space (or inodes) in a minimal format (implies -N)
(that is, with one file[system] specified, print 1 number only)
With -c, show only the total.
Intended to be useful for scripting (aka, I needed it.)

While here, improve the usage message (group options where they apply,
there is no reason, for example, that -g should be shown differently
to -k -m ..., and those options aren't at all useful with -G)

Update the man page to match.

df: bump man page date

df: add grand total option

Add a grand total option, -c, similar to the du(1) -c option. Adapted from
the same option (-c) in FreeBSD df(1).

we don't need root anymore.

file system police. Fix typo. Fix macro use.

It is not just root, it is device read access (kre)

mention that -W needs root.

Print the wedge name with -W instead of mntfrom

-G cannot be specified alongside -i or -P.

Heads up by <leot>

Match SYNOPSIS with usage()

branches: 1.47.4; 1.47.6;
Remove workaround for ancient HTML generation code.

branches: 1.46.6;
Bump date
Reminded by wiz@

df was there from v1.
Confirmed from the TUHS & cat-v.org hosted copies of man pages.

\\ -> \e

sort options from anon ymous

PR/36817: Zafer Aydogan: Don't use -g to implement the same named option
in solaris to display statvfs output, use -G instead. I researched this
and all other implementations except Solaris (OS/X, FreeBSD, us before June
24, 2007) use -g to signify gigabytes. So revert to that.
PR/38154: YAMAMOTO Takashi: df -P doesn't work without -k. Fix from Anon Ymous
together with passing lint, and exiting with the right values.

branches: 1.41.4; 1.41.8;
PR/36541: Greg A. Woods: fix -P option, and add solaris -g option.

Improve wording of -a description. From FreeBSD via Zafer Aydogan.

PR/32103: Zafer Aydogan: Fix references to obsolete fstatfs and getfsstat

Mention -g in synopsis. PR#25800 from Kouichirou Hiratsuka.

Refer statvfs instead of removed statfs.

branches: 1.36.2;
Replace hard to understand wording with a different
one from further down in the same page. Suggested by jmc@openbsd.

comma-separated with a "-" in between. From Jared Yanovich via jmc@openbsd.

mention that -h also overrides BLOCKSIZE, and sort around there

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22249, verified by myself.

add -g to ENVIRONMENT.

change -G arg to -g.

-G was chosen as SuSv2 specified -g was already used in ls(1), but ls
has no blocksize options like df/du, so this was redundant.

bump date in man page.

add -G argument for output in gigabytes.

ok'd by perry@, mrg@

grammar fix.

matche->match, from Igor Sobrado in PR 19670

human-readable output via -h flag. output matches Linux and other BSDs.
partly from kstailey@openbsd.org. approved itojun and perry.

New policy: New sentences start on a new line.
Patches by Robert Elz <kre at munnari oz au>, with minimal changes by me.

Generate <>& symbolically. I'm avoiding .../dist/... directories for now.

Use standard headers, sort SEE ALSO.

put -l explanation before -m, so that the options are in alphabet order
Fixes misc/14471 by Hiramatsu Yoshifumi.

precede, not preceed.

Xref getbsize(3).

Add -m option, similar to -k, but display output in 1024*1024 byte units.

Patch submitted by Chris Pinnock <C.J.E.Pinnock@qmw.ac.uk> in PR 11849,
adjusted for NetBSD-current by me.

Support the 1003.2-92 -P flag for a `portable output format'; based on
Ben Harris' patch in standards/11208 but extended about output alignment
and documentation.

Add -a flag now that we have support for MNT_IGNORE

More and more .Os cleanups. .Os is defined in the tmac.doc-common file,
so we shouldn't override it with versions in the manpages. Many more to
come.

tunefs lives in section 8, not 1.

Close PR 6919, submitted by Jaromir Dolecek <jdolecek@per4mance.cz>.

branches: 1.14.2;
Fix .Nm usage.

Make df(1) more liberal (and intelligent) about what it accepts
as arguments (for -t and -l flags, specifically).
From Hubert Feyrer <feyrer@rfhs8002.fh-regensburg.de>, PR #2869.

ENVIRONMENTAL -> ENVIRONMENT

Use "utility" instead of "command". Modern definitions of these terms
are distinct (See POSIX.2 glossary).

A utility is a executable, script or shell builtin; while a command
can be any of those things plus lists, pipelines, compound commands
(if, for, while) and shell function definitions.

convert to new RCS id conventions.

Document the `-t' option as in umount(8).

Add `-t' option from Matthew Green, hacked a bit by me.

Deal with large file systems, and clean up a bit.

branches: 1.6.2;
Add `-l' option.

Incorporate new version using getbsize(), with -k flag added.

Add RCS indentifiers.

changed "Id" to "Header" for rcsids

added rcs ids to all files

branches: 1.1.1;
Initial revision