Shell command Find

Introduced

Find命令的工作方式：沿着文件层次结构向下遍历，匹配符合条件的文件，并执行相应的操作。

Options

-print: Indicates the file name (path) to print out the matching file. When using-print, ' \ n ' as the delimiter used to separate files

-print0: Indicates that each matching file name is printed using '% ' as a delimiter. This method is useful when the file name contains a line break.

-name: Specifies the string to which the file name must match. Wildcard characters supported

Find/home/dd-name "*.txt"-print

-iname:-name ignoring case

-path: Match path, wildcard character is supported.

Find. -path "*www*"

-perm: Specify Permissions

-regex: Using regular expressions to match files

Find. -regex ". *\ (\.py\|\.sh\) $"

-iregex:-regex ignoring case

-maxdepth: Specifies the maximum depth directory to find

Find. -maxdepth 1-type F-print

-mindepth: Specifies the first depth of the directory to start looking for

Operator

(expr): Force precedence.

Expr1 EXPR2

Expressions in a row is taken to being joined with an implied "and"; EXPR2 is isn't evaluated if EXPR1 is false.
Find. -name ' 1.txt '-type f-user ' PDD '

! Expr: Logical Non-

Find it! -name ' tmp '

Expr1-a EXPR2: Logical AND, default options

Same as Expr1 expr2.

Expr1-o EXPR2: Logical OR

or; EXPR2 is isn't evaluated if EXPR1 is true.

Find. \ (-name "*.txt"-o "*.pdf" \)-print

-type: Specifies the type of file to find

B-Block Equipment

C-Character device

Catalog D

F Common Files

L Symbolic Link

P FIFO

s socket

Search by file time (-{a,m,c}time measured in days,-{a,m,c}min in minutes)

Access Time (-atime,-amin): The last time a user accessed a file

Modification Time (-mtime,-mtime): The time the file content was last modified

Change Time (-ctime,-cmin): File metadata (metadata, such as permissions or ownership) time of last change

Find. -type f-atime-7-print # files visited in the last seven days

Find. -type f-atime 7-print # files visited exactly seven days ago

Find. -type F-atime +7-print # files with access times longer than seven days

-size: Search According to the size of the file

B Block (512 bytes default)

C bytes

W Word (2 bytes)

K Kbytes

M MBytes

G gigabyte

Find. -type f-size +2k # files larger than 2KB

Find. -type f-size-2k # files less than 2KB

Find. -type f-size 2k # equals 2KB file

-delete: Delete a found matching file

-user (can be a user name or UID): Find files owned by a specific user

-exec command {} \;: Combined with other commands

Find. -type f-user root-exec chown www {} \;

In this command, {} is a special string that is used in conjunction with the-EXEC option. For each matching file, {} is replaced with the corresponding file name. For example, the above command finds two files Test1.txt and Test2.txt, which will eventually be parsed bit chown www test1.txt and chown www test2.txt

-prune: Skips the specified directory

Find. -path./pdd-prune-o-print

Shell command Find