https://gunkies.org/index.php?action=history&feed=atom&title=32v_1m_dcheck32v 1m dcheck - Revision history2026-05-29T23:38:11ZRevision history for this page on the wikiMediaWiki 1.30.1https://gunkies.org/w/index.php?title=32v_1m_dcheck&diff=6951&oldid=prevNeozeed: New page: DCHECK(1M) UNIX Programmer's Manual DCHECK(1M) == NAME == dcheck - file system directory consistency check == SYNOPSIS == dcheck [ -i numbers ] [ filesyste...2009-10-26T13:44:27Z<p>New page: DCHECK(1M) UNIX Programmer's Manual DCHECK(1M) == NAME == dcheck - file system directory consistency check == SYNOPSIS == dcheck [ -i numbers ] [ filesyste...</p>
<p><b>New page</b></p><div>DCHECK(1M) UNIX Programmer's Manual DCHECK(1M)<br />
<br />
<br />
<br />
== NAME ==<br />
dcheck - file system directory consistency check<br />
<br />
== SYNOPSIS ==<br />
dcheck [ -i numbers ] [ filesystem ]<br />
<br />
== DESCRIPTION ==<br />
_D_c_h_e_c_k reads the directories in a file system and compares<br />
the link-count in each i-node with the number of directory<br />
entries by which it is referenced. If the file system is<br />
not specified, a set of default file systems is checked.<br />
<br />
The -i flag is followed by a list of i-numbers; when one of<br />
those i-numbers turns up in a directory, the number, the i-<br />
number of the directory, and the name of the entry are<br />
reported.<br />
<br />
The program is fastest if the raw version of the special<br />
file is used, since the i-list is read in large chunks.<br />
<br />
== FILES ==<br />
Default file systems vary with installation.<br />
<br />
== SEE ALSO ==<br />
[[32v 1m icheck|icheck(1)]], [[32v 5m filesys|filsys(5)]], [[32v 1m clri|clri(1)]], [[32v 1m ncheck|ncheck(1)]]<br />
<br />
== DIAGNOSTICS ==<br />
When a file turns up for which the link-count and the number<br />
of directory entries disagree, the relevant facts are<br />
reported. Allocated files which have 0 link-count and no<br />
entries are also listed. The only dangerous situation<br />
occurs when there are more entries than links; if entries<br />
are removed, so the link-count drops to 0, the remaining<br />
entries point to thin air. They should be removed. When<br />
there are more links than entries, or there is an allocated<br />
file with neither links nor entries, some disk space may be<br />
lost but the situation will not degenerate.<br />
<br />
== BUGS ==<br />
Since _d_c_h_e_c_k is inherently two-pass in nature, extraneous<br />
diagnostics may be produced if applied to active file sys-<br />
tems.<br />
<br />
[[Category:32v man section 1]]</div>Neozeed