FIND(I) 5/15/74 FIND(I)





FIND(I)                      5/15/74                      FIND(I)







NAME

     find - find files



SYNOPSIS

     find pathname expression



DESCRIPTION

     Find  recursively  descends  the  directory  hierarchy  from

     pathname  seeking  files  that  match  a  boolean expression

     written in the primaries given below.  In the  descriptions,

     the  argument  n is used as a decimal integer where +n means

     more than n, -n means less than n and n means exactly n.



     -name filename   True if the filename argument  matches  the

                     current  file  name.   Normal Shell argument

                     syntax may be used if escaped (watch out for

                     `[', `?' and `*').



     -perm onum       True if the file permission  flags  exactly

                     match  the octal number onum (see chmod(I)).

                     If onum is prefixed by a  minus  sign,  more

                     flag  bits  (017777,  see  stat(II))  become

                     significant  and  the  flags  are  compared:

                     (flags&onum)==onum.



     -type c          True if the type of the file is c, where  c

                     is  b,  c,  d  or  f for block special file,

                     character special file, directory  or  plain

                     file.



     -links n         True if the file has n links.



     -user uname      True if the file belongs to the user uname.



     -group gname     As it is for  -user  so  shall  it  be  for

                     -group (someday).



     -size n          True if the file  is  n  blocks  long  (512

                     bytes per block).



     -atime n         True if the file has  been  accessed  in  n

                     days.



     -mtime n         True if the file has  been  modified  in  n

                     days.



     -exec command    True if the executed command  returns  exit

                     status  zero (most commands do).  The end of

                     the command  is  punctuated  by  an  escaped

                     semicolon.    A  command  argument  `{}'  is

                     replaced by the current pathname.



     -ok  command      Like  -exec  except  that  the   generated

                     command line is printed with a question mark

                     first, and is  executed  only  if  the  user

                     responds y.



     -print           Always true; causes the current pathname to

                     be printed.



     The primaries may be combined with these operators  (ordered

     by precedence):



     !                prefix not



     -a               infix and, second operand evaluated only if

                     first is true



     -o               infix or, second operand evaluated only  if

                     first is false



     (  expression  )   parentheses  for  grouping.    (Must   be

                     escaped.)



     To remove files named `a.out' and `*.o' not accessed  for  a

     week:



          find / "(" -name a.out -o -name "*.o" ")" -a -atime  +7

          -a -exec rm {} ";"



FILES

     /etc/passwd



SEE ALSO

     sh (I), if(I), file system (V)



BUGS

     There is no way to check device type.

     Syntax should be reconciled with if.
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