find #

find [starting-point...] [expression]

-help

-P
    Never follow symbolic links.  This is the default behaviour.
-L
    Follow symbolic links.
-H
    Do not follow symbolic links, except while processing the command line arguments.

-depth
    Process each directory's contents before the directory itself.
    The -delete action also implies -depth.

-maxdepth levels
    Descend at most levels (a non-negative integer) levels of directories below the starting-points.

-mindepth levels
    Do  not  apply  any  tests  or actions at levels less than levels (a non-negative integer).

-type c
    File is of type c:
    b   block (buffered) special
    c   character (unbuffered) special
    d   directory
    p   named pipe (FIFO)
    f   regular file
    l   symbolic link
    s   socket

-name pattern
    Base of file name matches shell  pattern  pattern.

-iname pattern
    Like  -name,  but  the  match  is case insensitive.

-lname pattern
    File is a symbolic link whose contents match shell pattern pattern.

-path pattern
    File name matches shell pattern pattern.
    The metacharacters do not treat `/' or `.' specially.

-ipath pattern
    Like -path.  but the match is case insensitive.

-regex pattern
    File  name  matches regular expression pattern.

-iregex pattern
    Like -regex, but the match is case insensitive.

-gid n
    File's numeric group ID is n.

-uid n
    File's numeric user ID is n.

-group gname
    File belongs to group gname (numeric group ID allowed).

-user uname
    File is owned by user  uname (numeric user ID allowed).

-writable
    Matches  files which are writable.

-readable
    Matches files which are readable.

-executable
    Matches  files  which  are  executable and directories which are searchable.

-perm mode
    File's permission bits are exactly mode (octal or symbolic).

-perm -mode
    All of the permission bits mode are set for the file.

-perm /mode
    Any of the permission bits mode are set for the file.

-size n[cwbkMG]
    File uses n units of space, rounding up.
    The + and - prefixes signify greater than and less than, as usual.
    The following suffixes can be used:
    b   for 512-byte blocks (this is the default if no suffix is used)
    c   for bytes
    w   for two-byte words
    k   for Kibibytes (KiB, units of 1024 bytes)
    M   for Mebibytes (MiB, units of 1024 * 1024 = 1048576 bytes)
    G   for Gibibytes (GiB, units of 1024 * 1024 * 1024 = 1073741824 bytes)

-amin n
    File was last accessed n minutes ago.

-atime n
    File was last accessed n*24 hours ago.

-mmin n
    File's data was last modified n minutes ago.

-mtime n
    File's  data  was last modified n*24 hours ago.

-ls
    List current file in ls -dils format on standard output.

-print
    Print the full file name on the standard output, followed by a newline.

-print0
    Print the full file name on the standard output, followed by a null character.

-fprint file
    Print the full file name into file file, followed by a newline.

-fprint0 file
    Print the full file name into file file, followed by a null character.

-delete
    Delete files; true if removal succeeded.
    If the removal failed, an error message is issued.
    If  -delete  fails,  find's exit status will be nonzero (when it eventually exits).

-exec command \;
-exec command \{\} \;
    Like  -exec, but  the  command  line  is  built  by appending  each  selected file name at the end.
-exec command \{\} +
    The command line is built by appending each selected file name at the end.


-execdir command \;
-execdir command \{\} \;
    Like  -exec, but the specified command is run from the subdirectory containing the matched file.
-execdir command \{\} +
    The command line is built by appending each selected file name at the end.

-quit
    Exit  immediately.
    For example, find /tmp/foo /tmp/bar -print -quit will print only /tmp/foo.

\( expr \)

\! expr
-not expr

expr1 expr2
expr1 -a expr2
expr1 -and expr2
expr1 -o expr2

expr1 -or expr2

expr1 , expr2
    Both  expr1 and expr2 are always evaluated.

find ./apple/ -type f -print

# Print parent dir path of each item
find ./apple/ -execdir pwd \;

# Compress .js/.css files
find ./apple/ \( -name '*.js' -o -name '*.css' \) -exec bash -c 'gzip -c "{}" > "{}.gz"' \;

# 使用 -L 参数来追踪软连接，而不是当做一个文件来处理。这个参数必须放在查询位置参数前面。
find -L ./apple/ -name '*'

# 错误写法：-exec指令后面跟的命令不能用引号引起来，要用空格正确分割
find ./apple/ -type d -exec 'ls -l ;'
# 正确写法：
find ./apple/ -type d -exec ls -l \;