Date: Mon, 10 Mar 1997 22:09:39 -0500 (EST) From: Tim.Vanderhoek@X2296 To: FreeBSD-gnats-submit@freebsd.org Subject: bin/2938: GNU du(1) is better than FreeBSD du(1) Message-ID: <199703110309.WAA01275@X2296> Resent-Message-ID: <199703110320.TAA21675@freefall.freebsd.org>
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>Number: 2938
>Category: bin
>Synopsis: Add -b, -l, and -f options to du(1)
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Mon Mar 10 19:20:02 PST 1997
>Last-Modified:
>Originator: Tim Vanderhoek
>Organization:
tIM...HOEk
>Release: FreeBSD 2.2-961006-SNAP i386
>Environment:
Any FreeBSD version upto, but not including, the one where
this fix is applied.
>Description:
GNU du(1) has a nice option (-b) to report values in bytes, instead of
in blocks. This can sometimes be useful.
GNU du(1) also has an option (-l) to count hardlinked once for every
link (instead of only once). This can be useful, for example, if
planning to copy files to a media which does not support hardlinks
(such as a FAT fs), or in any situation where hardlinked files are
treated as separate files.
Finally, both GNU du(1) and du(1) are missing a third option (-f)
which prevents the space used by directory entries from being
counted. As with the -b option, this can be useful to gain a better
idea of the true SIZE of the files (as opposed to the disk used by them
(and Yes, I know what "du" stands for :)).
Since we're on the subject, GNU du(1) also has a number of other
options which could be easily added, but they don't strike me as
being particularly worthwhile. They are -c (similar to -s),
-h (use silly G, M, etc. abbreviations), -m (BLOCKSIZE=2^20),
-S (similar or equivalent to no recurssing).
>How-To-Repeat:
Reread the description.
>Fix:
Okay, this fix adds all three options to du. Updates the manpage.
Fixes the synopsis in the manpage to include the -k added in Rev 1.2
of the manpage by wollman. Clarifies the description of the -d
option added in Rev 1.6 of the manpage by scrappy (submitted by
John-Mark Gurney <jmg@nike.efn.org>). Fixes a (char *) cast to be
(void *), since realloc() expects a (void *) and if we're going to
cast it, we might as well do it rightly... (Or does this violate
the so-called decision to pretend to support K&R compilers?).
If you so desire, I can even resubmit the patches without any one
or more or the above fixes.
*** du.c.orig Mon Mar 10 21:17:40 1997
--- du.c Mon Mar 10 21:03:03 1997
***************
*** 68,80 ****
long blocksize;
int ftsoptions, listdirs, listfiles, depth;
int Hflag, Lflag, Pflag, aflag, ch, notused, rval, sflag, dflag;
char **save;
save = argv;
! Hflag = Lflag = Pflag = aflag = sflag = dflag = 0;
depth = INT_MAX;
ftsoptions = FTS_PHYSICAL;
! while ((ch = getopt(argc, argv, "HLPad:ksx")) != EOF)
switch (ch) {
case 'H':
Hflag = 1;
--- 68,82 ----
long blocksize;
int ftsoptions, listdirs, listfiles, depth;
int Hflag, Lflag, Pflag, aflag, ch, notused, rval, sflag, dflag;
+ int bflag, kflag, lflag, fflag;
char **save;
save = argv;
! Hflag = Lflag = Pflag = aflag = bflag = sflag = dflag = kflag = 0;
! lflag = fflag = 0;
depth = INT_MAX;
ftsoptions = FTS_PHYSICAL;
! while ((ch = getopt(argc, argv, "HLPabd:ksxlf")) != EOF)
switch (ch) {
case 'H':
Hflag = 1;
***************
*** 88,97 ****
--- 90,110 ----
Pflag = 1;
Hflag = Lflag = 0;
break;
+ case 'l':
+ lflag = 1;
+ break;
case 'a':
aflag = 1;
break;
+ case 'b':
+ bflag = 1;
+ break;
+ case 'f':
+ fflag = 1;
+ break;
case 'k':
+ /* We flag -k only to check conflicts with -b */
+ kflag = 1;
putenv("BLOCKSIZE=1024");
break;
case 's':
***************
*** 159,164 ****
--- 172,183 ----
(void)getbsize(¬used, &blocksize);
blocksize /= 512;
+ if (bflag) {
+ if (kflag)
+ usage();
+ blocksize = 1;
+ }
+
if ((fts = fts_open(argv, ftsoptions, NULL)) == NULL)
err(1, NULL);
***************
*** 168,174 ****
break;
case FTS_DP:
p->fts_parent->fts_number +=
! p->fts_number += p->fts_statp->st_blocks;
/*
* If listing each directory, or not listing files
* or directories and this is post-order of the
--- 187,196 ----
break;
case FTS_DP:
p->fts_parent->fts_number +=
! p->fts_number +=
! (fflag ? 0 :
! (bflag ? p->fts_statp->st_size :
! p->fts_statp->st_blocks));
/*
* If listing each directory, or not listing files
* or directories and this is post-order of the
***************
*** 189,205 ****
rval = 1;
break;
default:
! if (p->fts_statp->st_nlink > 1 && linkchk(p))
break;
/*
* If listing each file, or a non-directory file was
* the root of a traversal, display the total.
*/
if (listfiles || !p->fts_level)
! (void)printf("%qd\t%s\n",
! howmany(p->fts_statp->st_blocks, blocksize),
! p->fts_path);
! p->fts_parent->fts_number += p->fts_statp->st_blocks;
}
if (errno)
err(1, "fts_read");
--- 211,235 ----
rval = 1;
break;
default:
! if (!lflag && p->fts_statp->st_nlink > 1 && linkchk(p))
break;
/*
* If listing each file, or a non-directory file was
* the root of a traversal, display the total.
*/
if (listfiles || !p->fts_level)
! if (bflag)
! (void)printf("%qd\t%s\n",
! (long long) p->fts_statp->st_size,
! p->fts_path);
! else
! (void)printf("%qd\t%s\n",
! howmany(p->fts_statp->st_blocks,
! blocksize),
! p->fts_path);
! p->fts_parent->fts_number +=
! (bflag ? p->fts_statp->st_size :
! p->fts_statp->st_blocks);
}
if (errno)
err(1, "fts_read");
***************
*** 228,234 ****
if (ino == fp->inode && dev == fp->dev)
return (1);
! if (nfiles == maxfiles && (files = realloc((char *)files,
(u_int)(sizeof(ID) * (maxfiles += 128)))) == NULL)
err(1, "");
files[nfiles].inode = ino;
--- 258,264 ----
if (ino == fp->inode && dev == fp->dev)
return (1);
! if (nfiles == maxfiles && (files = realloc((void *)files,
(u_int)(sizeof(ID) * (maxfiles += 128)))) == NULL)
err(1, "");
files[nfiles].inode = ino;
***************
*** 242,247 ****
{
(void)fprintf(stderr,
! "usage: du [-H | -L | -P] [-a | -s | -d depth] [-k] [-x] [file ...]\n");
exit(1);
}
--- 272,277 ----
{
(void)fprintf(stderr,
! "usage: du [-H | -L | -P] [-a | -s | -d depth] [-k | -b] [-x] [-l] [-f] [file ...]\n");
exit(1);
}
*** du.1.orig Mon Mar 10 21:17:33 1997
--- du.1 Mon Mar 10 21:07:48 1997
***************
*** 42,48 ****
--- 42,51 ----
.Nm du
.Op Fl H | Fl L | Fl P
.Op Fl a | s | d Ar depth
+ .Op Fl k | b
.Op Fl x
+ .Op Fl l
+ .Op Fl f
.Op Ar file ...
.Sh DESCRIPTION
The
***************
*** 66,86 ****
All symbolic links are followed.
.It Fl P
No symbolic links are followed.
- .It Fl a
- Display an entry for each file in the file hierarchy.
- .It Fl d Ar depth
- Displays all directories only
- .Ar depth
- directories deep.
.It Fl k
Report in 1024-byte (1-Kbyte) blocks rather than the default. Note that
this overrides the
.Ev BLOCKSIZE
setting from the environment.
.It Fl s
Display only the grand total for the specified files.
.It Fl x
Filesystem mount points are not traversed.
.El
.Pp
.Nm Du
--- 69,103 ----
All symbolic links are followed.
.It Fl P
No symbolic links are followed.
.It Fl k
Report in 1024-byte (1-Kbyte) blocks rather than the default. Note that
this overrides the
.Ev BLOCKSIZE
setting from the environment.
+ .It Fl b
+ Report the number of bytes, rather than the number of blocks. Since
+ even 1-byte files occupy one block, the number reported by this option
+ will not equal the number of blocks * the blocksize (except in the case
+ where every file is an even multiple of the blocksize). This
+ option will silently fail for sizes over two gigabytes.
+ .It Fl a
+ Display an entry for each file in the file hierarchy.
+ .It Fl d Ar depth
+ Displays all directories only
+ .Ar depth
+ directories deep. This has no effect on the depth to which directories
+ are counted; it merely signifies that directories beyond
+ .Ar depth
+ are not to be displayed.
.It Fl s
Display only the grand total for the specified files.
.It Fl x
Filesystem mount points are not traversed.
+ .It Fl l
+ Files are not checked to see if they are hardlinked.
+ .It Fl f
+ Count only files, not the directory structure that contains them.
+ That is, do not count the space used by each directory entry.
.El
.Pp
.Nm Du
***************
*** 107,113 ****
Files having multiple hard links are counted (and displayed) a single
time per
.Nm du
! execution.
.Sh ENVIRONMENTAL VARIABLES
.Bl -tag -width BLOCKSIZE
.It Ev BLOCKSIZE
--- 124,132 ----
Files having multiple hard links are counted (and displayed) a single
time per
.Nm du
! execution unless the
! .Fl l
! option is specified.
.Sh ENVIRONMENTAL VARIABLES
.Bl -tag -width BLOCKSIZE
.It Ev BLOCKSIZE
>Audit-Trail:
>Unformatted:
help
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