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Annotation of coherent/a/usr/man/COHERENT/dcheck, revision 1.1.1.1

1.1       root        1: 
                      2: 
                      3: dcheck                       Command                       dcheck
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                      7: 
                      8: Directory consistency check
                      9: 
                     10: 
                     11: ddcchheecckk [ -ss ] [ -ii _i_n_u_m_b_e_r ... ] _f_i_l_e_s_y_s_t_e_m ...
                     12: 
                     13: dcheck performs a consistency check on each specified filesystem.
                     14: It scans all the  directories in each filesystem and keeps counts
                     15: of all i-nodes  referenced.  It compares these counts against the
                     16: link  counts maintained  in the i-nodes.   dcheck notes  any dis-
                     17: crepancies, and notes allocated i-nodes with a 0 link count.
                     18: 
                     19: If the -i switch is  present, dcheck compares each inumber in the
                     20: list  against those  in each  directory.   It reports  matches by
                     21: printing the i-number,  the i-number of the parent directory, and
                     22: the name of the entry.
                     23: 
                     24: The -s  switch causes dcheck to correct the  link count of errant
                     25: i-nodes to the entry count.
                     26: 
                     27: Since dcheck  is two-pass, the  file system should  be unmounted.
                     28: If  -s is  used on  the root  file system,  the system  should be
                     29: rebooted immediately (without performing a sync).  The raw device
                     30: should be used.
                     31: 
                     32: ***** See Also *****
                     33: 
                     34: check, dir.h, icheck, ncheck, sync, umount
                     35: 
                     36: ***** Diagnostics *****
                     37: 
                     38: If the  link count is  0 and there  are entries, the  file system
                     39: must be mounted and all entries removed immediately.  If the link
                     40: count is  nonzero and  the entry count  is larger, the  -s option
                     41: must be used to make the  counts agree.  In all other cases there
                     42: may be  wasted disk space but  there is no danger  of losing file
                     43: data.
                     44: 
                     45: ***** Notes *****
                     46: 
                     47: In earlier releases of COHERENT, dcheck acted upon a default file
                     48: system if none was specified.
                     49: 
                     50: This command has largely been replaced by fsck.
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                     64: COHERENT Lexicon                                           Page 1
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