4.4BSD/usr/share/man/cat8/clri.0

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CLRI(8)            BSD System Manager's Manual            CLRI(8)


NNAAMMEE
       clri - clear i-node

SSYYNNOOPPSSIISS
       //eettcc//ccllrrii filesystem i-number ...

DDEESSCCRRIIPPTTIIOONN
       NN..BB..:: _C_l_r_i is obsoleted for normal file system repair work
       by _f_s_c_k(8).

       _C_l_r_i writes zeros on  the  i-nodes  with  the  decimal  _i_-
       _n_u_m_b_e_r_s  on the _f_i_l_e_s_y_s_t_e_m_.  After _c_l_r_i_, any blocks in the
       affected file will show up as `missing' in an _i_c_h_e_c_k(8) of
       the _f_i_l_e_s_y_s_t_e_m_.

       Read  and  write  permission  is required on the specified
       file system device.  The i-node becomes allocatable.

       The primary purpose of this routine is to  remove  a  file
       which  for  some reason appears in no directory.  If it is
       used to zap an i-node which does appear  in  a  directory,
       care  should  be  taken to track down the entry and remove
       it.  Otherwise, when the i-node is reallocated to some new
       file,  the  old  entry  will still point to that file.  At
       that point removing the old entry  will  destroy  the  new
       file.  The new entry will again point to an unallocated i-
       node, so the whole cycle is likely to  be  repeated  again
       and again.

SSEEEE AALLSSOO
       icheck(8)

BBUUGGSS
       If the file is open, _c_l_r_i is likely to be ineffective.




















4th Berkeley Distribution  June 5, 1993                         1